<!DOCTYPE html>
<html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-0 vector-toc-not-available vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-0 skin-theme-clientpref-day vector-sticky-header-enabled" lang="de" dir="ltr"><head>
<meta charset="UTF-8">
<title>Interquartilsabstand (deskriptive Statistik)</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="icon" type="image/png" href="./_res_/favicon.png">
<link rel="canonical" href="https://de.wikipedia.org/wiki/Interquartilsabstand_(deskriptive_Statistik)"> <link href="./_mw_/ext.cite.styles.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.math.styles.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.wikimediamessages.styles.css" rel="stylesheet" type="text/css">
<link href="./_mw_/skins.vector.icons.css" rel="stylesheet" type="text/css">
<link href="./_mw_/skins.vector.search.codex.styles.css" rel="stylesheet" type="text/css">
<link href="./_mw_/skins.vector.styles.css" rel="stylesheet" type="text/css">
<meta name="ResourceLoaderDynamicStyles" content="">
<link href="./_mw_/ext.gadget.citeRef.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.defaultPlainlinks.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.dewikiCommonHide.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.dewikiCommonLayout.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.dewikiCommonStyle.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.dewikiDarkmode.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.dewikiResponsive.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.specialSearch.css" rel="stylesheet" type="text/css">
<link rel="stylesheet" type="text/css" href="./_mw_/site.styles.css">
<link rel="stylesheet" type="text/css" href="./_mw_/noscript.css">
<link rel="stylesheet" type="text/css" href="./_res_/footer.css">
<link rel="stylesheet" type="text/css" href="./_res_/vector-2022.css">
</head>
<body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject page-Interquartilsabstand_deskriptive_Statistik rootpage-Interquartilsabstand_deskriptive_Statistik skin-vector-2022 action-view">
<div class="mw-page-container">
<div class="mw-page-container-inner">
<div class="mw-content-container">
<main id="content" class="mw-body">
<header class="mw-body-header vector-page-titlebar">
<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Interquartilsabstand (deskriptive Statistik)</span></h1>
</header>
<a id="top"></a>
<div id="bodyContent" class="vector-body ve-init-mw-desktopArticleTarget-targetContainer" aria-labelledby="firstHeading" data-mw-ve-target-container="">
<div id="contentSub">
<div id="mw-content-subtitle"></div>
</div>
<div id="mw-content-text" class="mw-body-content mw-content-ltr" lang="de" dir="ltr"><div class="mw-content-ltr mw-parser-output" lang="de" dir="ltr"><p>Der <b>Interquartilsabstand</b>,<sup id="cite_ref-Cleff54_1-0" class="reference"><a href="#cite_note-Cleff54-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> auch kurz <b>Quartilsabstand</b> genannt<sup id="cite_ref-Henze32_2-0" class="reference"><a href="#cite_note-Henze32-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> und mit <b>IQA</b><sup id="cite_ref-Cleff54_1-1" class="reference"><a href="#cite_note-Cleff54-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> oder <b>IQR</b> (nach der englischen Bezeichnung <span lang="en"><i>interquartile range</i></span>)<sup id="cite_ref-Wolframiqr_3-0" class="reference"><a href="#cite_note-Wolframiqr-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> abgekürzt, ist ein <a href="Streuungsma%C3%9F_(Statistik)" title="Streuungsmaß (Statistik)">Streuungsmaß</a> in der <a href="Deskriptive_Statistik" title="Deskriptive Statistik">deskriptiven Statistik</a>. Sortiert man eine <a href="Stichprobe" title="Stichprobe">Stichprobe</a> der Größe nach, so gibt der Interquartilsabstand an, wie breit das <a href="Intervall_(Mathematik)" title="Intervall (Mathematik)">Intervall</a> ist, in dem die mittleren 50 % der Stichprobeelemente liegen.
</p>
<div class="mw-heading mw-heading2"><h2 id="Definition">Definition</h2></div>
<p>Gegeben sei eine <a href="Stichprobe" title="Stichprobe">Stichprobe</a> <span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle x_{1},x_{2},\dots ,x_{n}}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>1</mn>
</mrow>
</msub>
<mo>,</mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>2</mn>
</mrow>
</msub>
<mo>,</mo>
<mo>…<!-- … --></mo>
<mo>,</mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mi>n</mi>
</mrow>
</msub>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle x_{1},x_{2},\dots ,x_{n}}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/75c2d357bc1b965979bf171b5ba3bac0f68961c2.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:13.528ex; height:2.009ex;" alt="{\displaystyle x_{1},x_{2},\dots ,x_{n}}" loading="lazy"></span> mit <span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle n}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<mi>n</mi>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle n}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/a601995d55609f2d9f5e233e36fbe9ea26011b3b.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.395ex; height:1.676ex;" alt="{\displaystyle n}" loading="lazy"></span> Elementen, die der Größe nach sortiert sind. Es gilt also <span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle x_{1}\leq x_{2}\leq \dots \leq x_{n}}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>1</mn>
</mrow>
</msub>
<mo>≤<!-- ≤ --></mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>2</mn>
</mrow>
</msub>
<mo>≤<!-- ≤ --></mo>
<mo>⋯<!-- ⋯ --></mo>
<mo>≤<!-- ≤ --></mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mi>n</mi>
</mrow>
</msub>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle x_{1}\leq x_{2}\leq \dots \leq x_{n}}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/64f9c1b0c5f7f8eb539be0fa35ffb8e6c93a8651.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:19.335ex; height:2.343ex;" alt="{\displaystyle x_{1}\leq x_{2}\leq \dots \leq x_{n}}" loading="lazy"></span>.
</p><p>Des Weiteren sei <span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle x_{0{,}25}}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>25</mn>
</mrow>
</msub>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle x_{0{,}25}}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/c3f4b7bf518aecfbe88500e9c3a8e4b3066d434e.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:4.485ex; height:2.343ex;" alt="{\displaystyle x_{0{,}25}}" loading="lazy"></span> das untere Quartil und <span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle x_{0{,}75}}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>75</mn>
</mrow>
</msub>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle x_{0{,}75}}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/6f388d4c9f63a0663fff7c47eda8ba226b413b5a.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:4.485ex; height:2.343ex;" alt="{\displaystyle x_{0{,}75}}" loading="lazy"></span> das obere Quartil. Diese sind definiert als
</p>
<dl><dd><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle x_{0{,}25}={\begin{cases}{\tfrac {1}{2}}(x_{n\cdot 0{,}25}+x_{n\cdot 0{,}25+1}),&{\text{wenn }}n\cdot 0{,}25{\text{ ganzzahlig,}}\\x_{\lfloor n\cdot 0{,}25+1\rfloor },&{\text{wenn }}n\cdot 0{,}25{\text{ nicht ganzzahlig.}}\end{cases}}}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>25</mn>
</mrow>
</msub>
<mo>=</mo>
<mrow class="MJX-TeXAtom-ORD">
<mrow>
<mo>{</mo>
<mtable columnalign="left left" rowspacing=".2em" columnspacing="1em" displaystyle="false">
<mtr>
<mtd>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="false" scriptlevel="0">
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
</mstyle>
</mrow>
<mo stretchy="false">(</mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mi>n</mi>
<mo>⋅<!-- ⋅ --></mo>
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>25</mn>
</mrow>
</msub>
<mo>+</mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mi>n</mi>
<mo>⋅<!-- ⋅ --></mo>
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>25</mn>
<mo>+</mo>
<mn>1</mn>
</mrow>
</msub>
<mo stretchy="false">)</mo>
<mo>,</mo>
</mtd>
<mtd>
<mrow class="MJX-TeXAtom-ORD">
<mtext>wenn </mtext>
</mrow>
<mi>n</mi>
<mo>⋅<!-- ⋅ --></mo>
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>25</mn>
<mrow class="MJX-TeXAtom-ORD">
<mtext> ganzzahlig,</mtext>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mo fence="false" stretchy="false">⌊<!-- ⌊ --></mo>
<mi>n</mi>
<mo>⋅<!-- ⋅ --></mo>
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>25</mn>
<mo>+</mo>
<mn>1</mn>
<mo fence="false" stretchy="false">⌋<!-- ⌋ --></mo>
</mrow>
</msub>
<mo>,</mo>
</mtd>
<mtd>
<mrow class="MJX-TeXAtom-ORD">
<mtext>wenn </mtext>
</mrow>
<mi>n</mi>
<mo>⋅<!-- ⋅ --></mo>
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>25</mn>
<mrow class="MJX-TeXAtom-ORD">
<mtext> nicht ganzzahlig.</mtext>
</mrow>
</mtd>
</mtr>
</mtable>
<mo fence="true" stretchy="true" symmetric="true"></mo>
</mrow>
</mrow>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle x_{0{,}25}={\begin{cases}{\tfrac {1}{2}}(x_{n\cdot 0{,}25}+x_{n\cdot 0{,}25+1}),&{\text{wenn }}n\cdot 0{,}25{\text{ ganzzahlig,}}\\x_{\lfloor n\cdot 0{,}25+1\rfloor },&{\text{wenn }}n\cdot 0{,}25{\text{ nicht ganzzahlig.}}\end{cases}}}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/ec2d69a5e9a66554865b1b231126542f05925897.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -3.171ex; width:64.098ex; height:7.509ex;" alt="{\displaystyle x_{0{,}25}={\begin{cases}{\tfrac {1}{2}}(x_{n\cdot 0{,}25}+x_{n\cdot 0{,}25+1}),&{\text{wenn }}n\cdot 0{,}25{\text{ ganzzahlig,}}\\x_{\lfloor n\cdot 0{,}25+1\rfloor },&{\text{wenn }}n\cdot 0{,}25{\text{ nicht ganzzahlig.}}\end{cases}}}" loading="lazy"></span><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle x_{0{,}75}={\begin{cases}{\tfrac {1}{2}}(x_{n\cdot 0{,}75}+x_{n\cdot 0{,}75+1}),&{\text{wenn }}n\cdot 0{,}75{\text{ ganzzahlig,}}\\x_{\lfloor n\cdot 0{,}75+1\rfloor },&{\text{wenn }}n\cdot 0{,}75{\text{ nicht ganzzahlig.}}\end{cases}}}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>75</mn>
</mrow>
</msub>
<mo>=</mo>
<mrow class="MJX-TeXAtom-ORD">
<mrow>
<mo>{</mo>
<mtable columnalign="left left" rowspacing=".2em" columnspacing="1em" displaystyle="false">
<mtr>
<mtd>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="false" scriptlevel="0">
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
</mstyle>
</mrow>
<mo stretchy="false">(</mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mi>n</mi>
<mo>⋅<!-- ⋅ --></mo>
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>75</mn>
</mrow>
</msub>
<mo>+</mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mi>n</mi>
<mo>⋅<!-- ⋅ --></mo>
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>75</mn>
<mo>+</mo>
<mn>1</mn>
</mrow>
</msub>
<mo stretchy="false">)</mo>
<mo>,</mo>
</mtd>
<mtd>
<mrow class="MJX-TeXAtom-ORD">
<mtext>wenn </mtext>
</mrow>
<mi>n</mi>
<mo>⋅<!-- ⋅ --></mo>
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>75</mn>
<mrow class="MJX-TeXAtom-ORD">
<mtext> ganzzahlig,</mtext>
</mrow>
</mtd>
</mtr>
<mtr>
<mtd>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mo fence="false" stretchy="false">⌊<!-- ⌊ --></mo>
<mi>n</mi>
<mo>⋅<!-- ⋅ --></mo>
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>75</mn>
<mo>+</mo>
<mn>1</mn>
<mo fence="false" stretchy="false">⌋<!-- ⌋ --></mo>
</mrow>
</msub>
<mo>,</mo>
</mtd>
<mtd>
<mrow class="MJX-TeXAtom-ORD">
<mtext>wenn </mtext>
</mrow>
<mi>n</mi>
<mo>⋅<!-- ⋅ --></mo>
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>75</mn>
<mrow class="MJX-TeXAtom-ORD">
<mtext> nicht ganzzahlig.</mtext>
</mrow>
</mtd>
</mtr>
</mtable>
<mo fence="true" stretchy="true" symmetric="true"></mo>
</mrow>
</mrow>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle x_{0{,}75}={\begin{cases}{\tfrac {1}{2}}(x_{n\cdot 0{,}75}+x_{n\cdot 0{,}75+1}),&{\text{wenn }}n\cdot 0{,}75{\text{ ganzzahlig,}}\\x_{\lfloor n\cdot 0{,}75+1\rfloor },&{\text{wenn }}n\cdot 0{,}75{\text{ nicht ganzzahlig.}}\end{cases}}}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/99996ec33242360a13b4a9e6462c767b7ec49f3f.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -3.171ex; width:64.098ex; height:7.509ex;" alt="{\displaystyle x_{0{,}75}={\begin{cases}{\tfrac {1}{2}}(x_{n\cdot 0{,}75}+x_{n\cdot 0{,}75+1}),&{\text{wenn }}n\cdot 0{,}75{\text{ ganzzahlig,}}\\x_{\lfloor n\cdot 0{,}75+1\rfloor },&{\text{wenn }}n\cdot 0{,}75{\text{ nicht ganzzahlig.}}\end{cases}}}" loading="lazy"></span>.</dd></dl>
<p>Hierbei bezeichnet <span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \lfloor x\rfloor }">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<mo fence="false" stretchy="false">⌊<!-- ⌊ --></mo>
<mi>x</mi>
<mo fence="false" stretchy="false">⌋<!-- ⌋ --></mo>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle \lfloor x\rfloor }</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/738c94c88678dd08a289f90a47a609ce44eedf14.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:3.394ex; height:2.843ex;" alt="{\displaystyle \lfloor x\rfloor }" loading="lazy"></span> die <a href="Abrundungsfunktion" class="mw-redirect" title="Abrundungsfunktion">Abrundungsfunktion</a>. Sie rundet jede Zahl <span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle x}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<mi>x</mi>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle x}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/87f9e315fd7e2ba406057a97300593c4802b53e4.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.33ex; height:1.676ex;" alt="{\displaystyle x}" loading="lazy"></span> auf die nächste ganze Zahl ab. Es gilt also beispielsweise <span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \lfloor 1{,}2\rfloor =1}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<mo fence="false" stretchy="false">⌊<!-- ⌊ --></mo>
<mn>1</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>2</mn>
<mo fence="false" stretchy="false">⌋<!-- ⌋ --></mo>
<mo>=</mo>
<mn>1</mn>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle \lfloor 1{,}2\rfloor =1}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/038a011318d942c2d75f883bcea7fa7fc639bc3d.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:9.297ex; height:2.843ex;" alt="{\displaystyle \lfloor 1{,}2\rfloor =1}" loading="lazy"></span> und <span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \lfloor 3{,}99\rfloor =3}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<mo fence="false" stretchy="false">⌊<!-- ⌊ --></mo>
<mn>3</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>99</mn>
<mo fence="false" stretchy="false">⌋<!-- ⌋ --></mo>
<mo>=</mo>
<mn>3</mn>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle \lfloor 3{,}99\rfloor =3}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/262499c897337d74090c84e4cf24d26abbe1254f.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:10.46ex; height:2.843ex;" alt="{\displaystyle \lfloor 3{,}99\rfloor =3}" loading="lazy"></span>.
</p><p>Der Interquartilsabstand ist dann definiert als Differenz zwischen dem oberen und dem unteren Quartil:<sup id="cite_ref-Cleff54_1-2" class="reference"><a href="#cite_note-Cleff54-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</p>
<dl><dd><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \operatorname {IQA} =x_{0{,}75}-x_{0{,}25}}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<mi>IQA</mi>
<mo>=</mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>75</mn>
</mrow>
</msub>
<mo>−<!-- − --></mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>25</mn>
</mrow>
</msub>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle \operatorname {IQA} =x_{0{,}75}-x_{0{,}25}}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/82b2895a720747ab8f41d96d1e32df35b076d968.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:19.3ex; height:2.843ex;" alt="{\displaystyle \operatorname {IQA} =x_{0{,}75}-x_{0{,}25}}" loading="lazy"></span></dd></dl>
<div class="mw-heading mw-heading2"><h2 id="Beispiel">Beispiel</h2></div>
<p>Betrachte die Stichprobe
</p>
<dl><dd><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle 25;28;4;28;19;3;9;17;29;29}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<mn>25</mn>
<mo>;</mo>
<mn>28</mn>
<mo>;</mo>
<mn>4</mn>
<mo>;</mo>
<mn>28</mn>
<mo>;</mo>
<mn>19</mn>
<mo>;</mo>
<mn>3</mn>
<mo>;</mo>
<mn>9</mn>
<mo>;</mo>
<mn>17</mn>
<mo>;</mo>
<mn>29</mn>
<mo>;</mo>
<mn>29</mn>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle 25;28;4;28;19;3;9;17;29;29}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/4b7c5c25aecdbfe3be5262acf531adb311031c9f.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:29.067ex; height:2.509ex;" alt="{\displaystyle 25;28;4;28;19;3;9;17;29;29}" loading="lazy"></span></dd></dl>
<p>mit <span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle n=10}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<mi>n</mi>
<mo>=</mo>
<mn>10</mn>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle n=10}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/fecadd7726f4d4c6c390c2f2e73533d7a3729ab0.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:6.818ex; height:2.176ex;" alt="{\displaystyle n=10}" loading="lazy"></span> Elementen. Sortiert man die Elemente der Größe nach, so erhält man
</p>
<dl><dd><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle 3;4;9;17;19;25;28;28;29;29}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<mn>3</mn>
<mo>;</mo>
<mn>4</mn>
<mo>;</mo>
<mn>9</mn>
<mo>;</mo>
<mn>17</mn>
<mo>;</mo>
<mn>19</mn>
<mo>;</mo>
<mn>25</mn>
<mo>;</mo>
<mn>28</mn>
<mo>;</mo>
<mn>28</mn>
<mo>;</mo>
<mn>29</mn>
<mo>;</mo>
<mn>29</mn>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle 3;4;9;17;19;25;28;28;29;29}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/fdfad4a865b5137fe32289478e742b38d5cd145c.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:29.067ex; height:2.509ex;" alt="{\displaystyle 3;4;9;17;19;25;28;28;29;29}" loading="lazy"></span>.</dd></dl>
<p>Zur Bestimmung des unteren Quartils berechnet man <span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle n\cdot 0{,}25=2{,}5}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<mi>n</mi>
<mo>⋅<!-- ⋅ --></mo>
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>25</mn>
<mo>=</mo>
<mn>2</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>5</mn>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle n\cdot 0{,}25=2{,}5}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/7aaeec1fa8c3c59c197be4b881ecd4f04f8786ee.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:13.278ex; height:2.509ex;" alt="{\displaystyle n\cdot 0{,}25=2{,}5}" loading="lazy"></span>, was nicht ganzzahlig ist. Daher ist gemäß der oben angegebenen Definition
</p>
<dl><dd><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle x_{0{,}25}=x_{\lfloor n\cdot 0{,}25+1\rfloor }=x_{\lfloor 2{,}5+1\rfloor }=x_{\lfloor 3{,}5\rfloor }=x_{3}=9}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>25</mn>
</mrow>
</msub>
<mo>=</mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mo fence="false" stretchy="false">⌊<!-- ⌊ --></mo>
<mi>n</mi>
<mo>⋅<!-- ⋅ --></mo>
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>25</mn>
<mo>+</mo>
<mn>1</mn>
<mo fence="false" stretchy="false">⌋<!-- ⌋ --></mo>
</mrow>
</msub>
<mo>=</mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mo fence="false" stretchy="false">⌊<!-- ⌊ --></mo>
<mn>2</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>5</mn>
<mo>+</mo>
<mn>1</mn>
<mo fence="false" stretchy="false">⌋<!-- ⌋ --></mo>
</mrow>
</msub>
<mo>=</mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mo fence="false" stretchy="false">⌊<!-- ⌊ --></mo>
<mn>3</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>5</mn>
<mo fence="false" stretchy="false">⌋<!-- ⌋ --></mo>
</mrow>
</msub>
<mo>=</mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>3</mn>
</mrow>
</msub>
<mo>=</mo>
<mn>9</mn>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle x_{0{,}25}=x_{\lfloor n\cdot 0{,}25+1\rfloor }=x_{\lfloor 2{,}5+1\rfloor }=x_{\lfloor 3{,}5\rfloor }=x_{3}=9}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/af8f821317d88628c6de7e8fff3af1e751b1b7a4.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.171ex; width:45.361ex; height:3.009ex;" alt="{\displaystyle x_{0{,}25}=x_{\lfloor n\cdot 0{,}25+1\rfloor }=x_{\lfloor 2{,}5+1\rfloor }=x_{\lfloor 3{,}5\rfloor }=x_{3}=9}" loading="lazy"></span>.</dd></dl>
<p>Analog folgt
</p>
<dl><dd><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle x_{0{,}75}=x_{\lfloor n\cdot 0{,}75+1\rfloor }=x_{\lfloor 7{,}5+1\rfloor }=x_{\lfloor 8{,}5\rfloor }=x_{8}=28}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>75</mn>
</mrow>
</msub>
<mo>=</mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mo fence="false" stretchy="false">⌊<!-- ⌊ --></mo>
<mi>n</mi>
<mo>⋅<!-- ⋅ --></mo>
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>75</mn>
<mo>+</mo>
<mn>1</mn>
<mo fence="false" stretchy="false">⌋<!-- ⌋ --></mo>
</mrow>
</msub>
<mo>=</mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mo fence="false" stretchy="false">⌊<!-- ⌊ --></mo>
<mn>7</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>5</mn>
<mo>+</mo>
<mn>1</mn>
<mo fence="false" stretchy="false">⌋<!-- ⌋ --></mo>
</mrow>
</msub>
<mo>=</mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mo fence="false" stretchy="false">⌊<!-- ⌊ --></mo>
<mn>8</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>5</mn>
<mo fence="false" stretchy="false">⌋<!-- ⌋ --></mo>
</mrow>
</msub>
<mo>=</mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>8</mn>
</mrow>
</msub>
<mo>=</mo>
<mn>28</mn>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle x_{0{,}75}=x_{\lfloor n\cdot 0{,}75+1\rfloor }=x_{\lfloor 7{,}5+1\rfloor }=x_{\lfloor 8{,}5\rfloor }=x_{8}=28}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/07bc135a4dc51d03c0e205da28326764b16b9c34.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.171ex; width:46.523ex; height:3.009ex;" alt="{\displaystyle x_{0{,}75}=x_{\lfloor n\cdot 0{,}75+1\rfloor }=x_{\lfloor 7{,}5+1\rfloor }=x_{\lfloor 8{,}5\rfloor }=x_{8}=28}" loading="lazy"></span>.</dd></dl>
<p>Damit erhält man für den Interquartilsabstand
</p>
<dl><dd><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \operatorname {IQA} =x_{0{,}75}-x_{0{,}25}=28-9=19}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<mi>IQA</mi>
<mo>=</mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>75</mn>
</mrow>
</msub>
<mo>−<!-- − --></mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>25</mn>
</mrow>
</msub>
<mo>=</mo>
<mn>28</mn>
<mo>−<!-- − --></mo>
<mn>9</mn>
<mo>=</mo>
<mn>19</mn>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle \operatorname {IQA} =x_{0{,}75}-x_{0{,}25}=28-9=19}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/0cc6eaf54d15decc0d9a6caac93a0814dbe5e2e3.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:34.15ex; height:2.843ex;" alt="{\displaystyle \operatorname {IQA} =x_{0{,}75}-x_{0{,}25}=28-9=19}" loading="lazy"></span>.</dd></dl>
<div class="mw-heading mw-heading2"><h2 id="Aufbauende_Begriffe">Aufbauende Begriffe</h2></div>
<p>Aufbauend auf dem Interquartilsabstand wird der <b>mittlere Quartilsabstand</b> definiert, der mit <b>MQA</b><sup id="cite_ref-Cleff54_1-3" class="reference"><a href="#cite_note-Cleff54-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> oder <b>QD</b> (nach der englischen Bezeichnung <span lang="en"><i>quartile deviation</i></span>)<sup id="cite_ref-Wolframqd_4-0" class="reference"><a href="#cite_note-Wolframqd-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> abgekürzt wird.
Er ist definiert als<sup id="cite_ref-Cleff54_1-4" class="reference"><a href="#cite_note-Cleff54-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</p>
<dl><dd><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \operatorname {MQA} ={\frac {1}{2}}\operatorname {IQA} ={\frac {1}{2}}\left({x_{0{,}75}-x_{0{,}25}}\right)}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<mi>MQA</mi>
<mo>=</mo>
<mrow class="MJX-TeXAtom-ORD">
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
</mrow>
<mi>IQA</mi>
<mo>=</mo>
<mrow class="MJX-TeXAtom-ORD">
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
</mrow>
<mrow>
<mo>(</mo>
<mrow class="MJX-TeXAtom-ORD">
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>75</mn>
</mrow>
</msub>
<mo>−<!-- − --></mo>
<msub>
<mi>x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn>0</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>25</mn>
</mrow>
</msub>
</mrow>
<mo>)</mo>
</mrow>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle \operatorname {MQA} ={\frac {1}{2}}\operatorname {IQA} ={\frac {1}{2}}\left({x_{0{,}75}-x_{0{,}25}}\right)}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/15a013038f41fcccbe66fcc677f3e6c954b98a83.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.838ex; width:34.662ex; height:5.176ex;" alt="{\displaystyle \operatorname {MQA} ={\frac {1}{2}}\operatorname {IQA} ={\frac {1}{2}}\left({x_{0{,}75}-x_{0{,}25}}\right)}" loading="lazy"></span>.</dd></dl>
<p>Im obigen Beispiel wäre der mittlere Quartilsabstand somit
</p>
<dl><dd><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \operatorname {MQA} ={\frac {1}{2}}\cdot 19=9{,}5}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
<mstyle displaystyle="true" scriptlevel="0">
<mi>MQA</mi>
<mo>=</mo>
<mrow class="MJX-TeXAtom-ORD">
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
</mrow>
<mo>⋅<!-- ⋅ --></mo>
<mn>19</mn>
<mo>=</mo>
<mn>9</mn>
<mrow class="MJX-TeXAtom-ORD">
<mo>,</mo>
</mrow>
<mn>5</mn>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle \operatorname {MQA} ={\frac {1}{2}}\cdot 19=9{,}5}</annotation>
</semantics>
</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/79e64032cc888435e4c3b23a56fe7fcc7b1bf9eb.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.838ex; width:20.853ex; height:5.176ex;" alt="{\displaystyle \operatorname {MQA} ={\frac {1}{2}}\cdot 19=9{,}5}" loading="lazy"></span>.</dd></dl>
<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>
<ol class="references">
<li id="cite_note-Cleff54-1"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-Cleff54_1-0">a</a></sup> <sup><a href="#cite_ref-Cleff54_1-1">b</a></sup> <sup><a href="#cite_ref-Cleff54_1-2">c</a></sup> <sup><a href="#cite_ref-Cleff54_1-3">d</a></sup> <sup><a href="#cite_ref-Cleff54_1-4">e</a></sup></span> <span class="reference-text"> Thomas Cleff: <cite style="font-style:italic">Deskriptive Statistik und Explorative Datenanalyse</cite>. Eine computergestützte Einführung mit Excel, SPSS und STATA. 3., überarbeitete und erweiterte Auflage. Springer Gabler, Wiesbaden 2015, ISBN 978-3-8349-4747-5, <span style="white-space:nowrap">S.<span style="display:inline-block;width:.2em"> </span>54</span>, <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1007/978-3-8349-4748-2">10.1007/978-3-8349-4748-2</a></span>.<span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rfr_id=info:sid/de.wikipedia.org:Interquartilsabstand+%28deskriptive+Statistik%29&rft.au=Thomas+Cleff&rft.btitle=Deskriptive+Statistik+und+Explorative+Datenanalyse&rft.date=2015&rft.doi=10.1007%2F978-3-8349-4748-2&rft.edition=3.%2C+%C3%BCberarbeitete+und+erweiterte&rft.genre=book&rft.isbn=9783834947475&rft.pages=54&rft.place=Wiesbaden&rft.pub=Springer+Gabler" style="display:none"> </span> </span>
</li>
<li id="cite_note-Henze32-2"><span class="mw-cite-backlink"><a href="#cite_ref-Henze32_2-0">↑</a></span> <span class="reference-text"> Norbert Henze: <cite style="font-style:italic">Stochastik für Einsteiger</cite>. Eine Einführung in die faszinierende Welt des Zufalls. 10. Auflage. Springer Spektrum, Wiesbaden 2013, ISBN 978-3-658-03076-6, <span style="white-space:nowrap">S.<span style="display:inline-block;width:.2em"> </span>32</span>, <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1007/978-3-658-03077-3">10.1007/978-3-658-03077-3</a></span>.<span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rfr_id=info:sid/de.wikipedia.org:Interquartilsabstand+%28deskriptive+Statistik%29&rft.au=Norbert+Henze&rft.btitle=Stochastik+f%C3%BCr+Einsteiger&rft.date=2013&rft.doi=10.1007%2F978-3-658-03077-3&rft.edition=10.&rft.genre=book&rft.isbn=9783658030766&rft.pages=32&rft.place=Wiesbaden&rft.pub=Springer+Spektrum" style="display:none"> </span> </span>
</li>
<li id="cite_note-Wolframiqr-3"><span class="mw-cite-backlink"><a href="#cite_ref-Wolframiqr_3-0">↑</a></span> <span class="reference-text"> <a href="Eric_Weisstein" title="Eric Weisstein">Eric W. Weisstein</a>: <a rel="nofollow" class="external text" href="https://mathworld.wolfram.com/InterquartileRange.html"><i>Interquartile Range</i>.</a> In: <i><a href="MathWorld" title="MathWorld">MathWorld</a></i> (englisch). </span>
</li>
<li id="cite_note-Wolframqd-4"><span class="mw-cite-backlink"><a href="#cite_ref-Wolframqd_4-0">↑</a></span> <span class="reference-text"> <a href="Eric_Weisstein" title="Eric Weisstein">Eric W. Weisstein</a>: <a rel="nofollow" class="external text" href="https://mathworld.wolfram.com/QuartileDeviation.html"><i>Quartile Deviation</i>.</a> In: <i><a href="MathWorld" title="MathWorld">MathWorld</a></i> (englisch). </span>
</li>
</ol></div><!--htdig_noindex--><div><div class="zim-footer">
Dieser Artikel wurde von <a class="external text" title="Zuletzt bearbeitet am 2025-10-01" href="https://de.wikipedia.org/wiki/?title=Interquartilsabstand_(deskriptive_Statistik)&oldid=260221562">Wikipedia</a> herausgegeben. Der Text ist unter <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.de">Creative Commons Attribution-Share Alike 4.0</a> verfügbar, sofern nicht anders angegeben. Für die Mediendateien können zusätzliche Bedingungen gelten.
</div>
</div><!--/htdig_noindex--></div>
</div>
</main>
</div>
</div>
</div>
<script src="./_webp_/webpHandler.js"></script>
</body></html>