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Re: Are the standard deviations of set A and set B the same? 1) n=6 2) S [#permalink]
Very nice one.
It shows that SD measure the actually the "Dispersion" around the average value of the items.

(1)- Not sufficient
(2)- Sufficient. Can be done by trying different value of n.
Below is a formula approach
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Re: Are the standard deviations of set A and set B the same? 1) n=6 2) S [#permalink]
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Re: Are the standard deviations of set A and set B the same? 1) n=6 2) S [#permalink]
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