Statistics/Chi-squared distribution: Difference between revisions

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The probability density function (pdf) of the chi-squared distribution as used in statistics is

f(x;\,k)={\dfrac {x^{{\frac {k}{2}}-1}e^{-{\frac {x}{2}}}}{2^{\frac {k}{2}}\Gamma \left({\frac {k}{2}}\right)}}

, where

{\textstyle x>0}

Here, ${\textstyle \Gamma (k/2)}$ denotes the Gamma_function.

Revision as of 00:52, 1 October 2022 (view source) Wherrera (talk \| contribs) (Created page with ":<math> f(x;\,k) = \dfrac{x^{\frac k 2 -1} e^{-\frac x 2}}{2^{\frac k 2} \Gamma\left(\frac k 2 \right)}, & x > 0; </math> where <math display="inline">\Gamma(k/2)</math> is the Gamma_function.")		Revision as of 00:58, 1 October 2022 (view source) Wherrera (talk \| contribs) No edit summary Newer edit →
Line 1: The probability density function (pdf) of the chi-squared distribution as used in statistics is :<math> f(x;\,k) = \dfrac{x^{\frac k 2 -1} e^{-\frac x 2}}{2^{\frac k 2} \Gamma\left(\frac k 2 \right)} </math>, &where <math display="inline">x > 0; </math> ~~where~~Here, <math display="inline">\Gamma(k/2)</math> isdenotes the [[Gamma_function]].▼ ~~</math>~~ ▲where <math display="inline">\Gamma(k/2)</math> is the [[Gamma_function]].