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HP Forum Archive 21

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Sample variance?
Message #1 Posted by Bruce Bergman on 11 Oct 2013, 2:43 a.m.

On page 419 of the latest Prime user guide, it shows how to use the variance() function. This is the population variance. Is there a way to calculate the sample variance instead?

Also, I can't find a built-in function for percentile. I could probably write something easily enough, but I'm wondering if I'm missing it somewhere...



Re: Sample variance?
Message #2 Posted by Nick_S on 11 Oct 2013, 7:30 a.m.,
in response to message #1 by Bruce Bergman

From p194 of the manual:

Tapping [Stats] displays the following results for each dataset selected in Symbolic view.
sX Sample standard deviation
sigmaX Population standard deviation

Then obtain the sample variance as the square of sX


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