There's a difference, IIRC, between the population standard deviation and the sample standard deviation (again IIRC, this is sometimes called standard error - I'm sure a statistician will explain the issues). Excel has functions for both - stdev and stdeva. Are you sure which you want to use and that you are using the equivalent in both?

Regards,

John Davies

Update: I didn't mention stdevp as I didn't know about it. Thanks, poj.

In reply to Re: Excel or Perl for simple statistics? by davies
in thread Excel or Perl for simple statistics? by Anonymous Monk

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