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Re: standard deviation accuracy question

by jpeg (Chaplain)
on Jul 22, 2005 at 14:06 UTC ( [id://477228]=note: print w/replies, xml ) Need Help??


in reply to standard deviation accuracy question

How are you calcing standard deviation in Excel? There's STDEV, STDEVA, STDEVP, STDEVPA, off the top of my head.

Excel's STDEVP uses the n-1 as the denominator, so you should probably use

my $elements = $#ar;
just to compare apples and apples.
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jpg

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