Posted by: **jeffd445** | April 11, 2008

## Kurtosis?

Biosbooter and I were looking around on our friend’s computer, and stumbled into Microsoft Excel 2000. (who doesn’t?) The little paperclip guy offered a search, which I know is stupid. We typed in “Britney Spears?” and got nothing, but then remembered she would not be known in a 2000 program. So maybe a 90s person would show up in the search results. We typed Kurt Cobain, Nirvana’s deceased lead singer. Then, Kurtosis came up. It’s some complicated mathematical formula, shown below.

If you know what this is, do not hesitate to tell us.

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Kurtosis is a parameter that describes the shape of a random variable’s probability density function (PDF). A normal random variable has a kurtosis of 3 irrespective of its mean or standard deviation. If a random variable’s kurtosis is greater than 3, it is said to be leptokurtic. If its kurtosis is less than 3, it is said to be platykurtic. Leptokurtosis is associated with PDFs that are simultaneously “peaked” and have “fat tails.” Platykurtosis is associated with PDFs that are simultaneously less peaked and have thinner tails. They are said to have “shoulders.”

By:

chemboyon April 12, 2008at 5:59 am

thanks for copying and pasting from another site chemboy

By:

futbal7on April 12, 2008at 7:01 pm

No actually I did not. I have a good understanding of this equation from research.

By:

chemboyon April 13, 2008at 4:04 pm

How come everybody only argues over my articles? Am I that talented?

By:

jeffd445on April 13, 2008at 4:15 pm

ynbmllteeoihhzjj gfx48uy

By:

1ant1on April 14, 2008at 3:50 pm