Question about Texas Instruments BA-II Plus Calculator

When I am trying to figure the standard deviation on my BA II plus I am not getting the right answers?

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s=sqr(1/(n-1) sum (x-x_ )^2  or  sqr(1/n)......
just a slight differance  but never the less differant
hope this helps

Posted on Jan 16, 2009

Hi,
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Posted on Jan 02, 2017

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