卡方分佈：修订间差异 - 求闻百科，共笔求闻

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下文是求闻百科的历史内容，而非最新内容，不代表求闻百科的立场。
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第26行：

|entropy = <math>\begin{align}\frac{k}{2}&+\ln(2\Gamma(k/2)) \\ &\!+(1-k/2)\psi(k/2)\end{align}</math>

|mgf = <math>(1-2\,t)^{-k/2}</math>，<math>2\,t<1</math>

|char = <math>(1-2\,i\,t)^{-k/2}</math><ref>{{cite web | url=http://www.planetmathematics.com/CentralChiDistr.pdf | title=Characteristic function of the central chi-squared distribution | author=M.A. Sanders | accessdate=2009-03-06 ~~| archive-url=https://web.archive.org/web/20110715091705/http://www.planetmathematics.com/CentralChiDistr.pdf | archive-date=2011-07-15 | dead-url=yes~~ }}</ref>

|char = <math>(1-2\,i\,t)^{-k/2}</math><ref>{{cite web | url=http://www.planetmathematics.com/CentralChiDistr.pdf | title=Characteristic function of the central chi-squared distribution | author=M.A. Sanders | accessdate=2009-03-06 }}</ref>

}}

第286行：

== 阅读 ==

* [http://molecular-service-science.com/2012/08/03/cross-table-and-chi-squared-test/ 卡方分配與卡方檢定] ~~{{Wayback|url=http://molecular-service-science.com/2012/08/03/cross-table-and-chi-squared-test/ |date=20190713015112 }}~~

* [http://molecular-service-science.com/2012/08/03/cross-table-and-chi-squared-test/ 卡方分配與卡方檢定]

== 外部链接 ==

* [http://www.vias.org/simulations/simusoft_distcalc.html 分布计算器]~~{{Wayback|url=http://www.vias.org/simulations/simusoft_distcalc.html |date=20070129113929 }}~~{{en}}

* [http://www.vias.org/simulations/simusoft_distcalc.html 分布计算器]{{en}}

@@ 第26行： / 第26行： @@
 |entropy = <math>\begin{align}\frac{k}{2}&+\ln(2\Gamma(k/2)) \\ &\!+(1-k/2)\psi(k/2)\end{align}</math>
 |mgf = <math>(1-2\,t)^{-k/2}</math>，<math>2\,t<1</math>
-|char = <math>(1-2\,i\,t)^{-k/2}</math><ref>{{cite web | url=http://www.planetmathematics.com/CentralChiDistr.pdf | title=Characteristic function of the central chi-squared distribution | author=M.A. Sanders | accessdate=2009-03-06 | archive-url=https://web.archive.org/web/20110715091705/http://www.planetmathematics.com/CentralChiDistr.pdf | archive-date=2011-07-15 | dead-url=yes }}</ref>
+|char = <math>(1-2\,i\,t)^{-k/2}</math><ref>{{cite web | url=http://www.planetmathematics.com/CentralChiDistr.pdf | title=Characteristic function of the central chi-squared distribution | author=M.A. Sanders | accessdate=2009-03-06 }}</ref>
 }}
@@ 第286行： / 第286行： @@
 == 阅读 ==
-* [http://molecular-service-science.com/2012/08/03/cross-table-and-chi-squared-test/ 卡方分配與卡方檢定] {{Wayback|url=http://molecular-service-science.com/2012/08/03/cross-table-and-chi-squared-test/ |date=20190713015112 }}
+* [http://molecular-service-science.com/2012/08/03/cross-table-and-chi-squared-test/ 卡方分配與卡方檢定]
 == 外部链接 ==
-* [http://www.vias.org/simulations/simusoft_distcalc.html 分布计算器]{{Wayback|url=http://www.vias.org/simulations/simusoft_distcalc.html |date=20070129113929 }}{{en}}
+* [http://www.vias.org/simulations/simusoft_distcalc.html 分布计算器]{{en}}
 {{概率分布|continuous-semi-infinite}}