Sample variance?


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...




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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