Talk:U-quadratic distribution

Statistics Low‑importance

	This article is within the scope of WikiProject Statistics, a collaborative effort to improve the coverage of statistics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.StatisticsWikipedia:WikiProject StatisticsTemplate:WikiProject StatisticsStatistics articles
Low	This article has been rated as Low-importance on the importance scale.

Mathematics Low‑priority

	Mathematics portal This article is within the scope of WikiProject Mathematics, a collaborative effort to improve the coverage of mathematics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MathematicsWikipedia:WikiProject MathematicsTemplate:WikiProject Mathematicsmathematics articles
Low	This article has been rated as Low-priority on the project's priority scale.

SOCR UCLA edit

Latest comment: 13 years ago1 comment1 person in discussion

This article is similar to http://wiki.stat.ucla.edu/socr/index.php/UQuadraticDistribuionAbout but it seems the other may have come first by a day. See [1] November 5, 2007 and [2] November 6, 2007. Same contributor? --Rumping (talk) 11:08, 1 September 2010 (UTC)Reply

Latest comment: 11 months ago1 comment1 person in discussion

The value is given as a positive multiple of (b-a)^4

1. It should not have b-a in it; b-a is a scale parameter but kurtosis (and hence excess kurtosis) is scale free.

2. The given value is positive, but the excess kurtosis for this distribution is (plainly) negative.

3. It looks like the value given in the sidebar is probably the fourth central moment, not excess kurtosis.

Glenbarnett (talk) 08:40, 22 May 2023 (UTC)Reply