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... Thanks, Bruce

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: Quote: 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 Nick

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