What Is Sample Variance In Statistics


Sample variance is defined as following;

S^2 = SUM(xi – xmean)^2 / n – 1

And it is the point estimate of the population variance

Get the Essentials of business statistics, third edition, by Bruce L. Bowerman, Richard T, A O’connell, J.B Orris and Emily S. Murphree. It is a good textbook of business statistics.



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