# Talk:Chi distribution

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WikiProject Mathematics (Rated Start-class, Mid-importance)
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Field: Probability and statistics

## suggestion for plot

Might I suggest whoever made the nice plot of the pdfs to add a curve for a value of k less than one to the plot, so we can see it diverge at 0? Otherwise people may think the value at the mode is always finite. Btyner 19:29, 11 May 2006 (UTC)

## I think their is something wrong with the expression of the equation

like$1-k/2\,$ does that mean $1-\frac{k}{2} or \frac{1-k}{2} or neither?$ —The preceding unsigned comment was added by Tikai (talkcontribs) 15:14, 11 May 2007 (UTC).

Order of operations states that $1-k/2$ is equivalent to $1-\frac{k}{2}$. Svyatoslav (talk) 21:29, 10 December 2012 (UTC)

And the variance looks wrong too. I believe the variance approaches $1/2$ as $k$ goes to infinity Shabbychef (talk) 22:16, 13 March 2014 (UTC) Oh, wait, my bad, the $\mu$ refers to the mean of the chi, not the means of the normals. This looks fine. Shabbychef (talk) 22:18, 13 March 2014 (UTC)