The sample variance calculated with a divisor of n gives a better estimate of the population variance, , than does the sample variance, , with a divisor of n - 1.

Question

The sample variance calculated with a divisor of n gives a better estimate of the population variance,  , than does the sample variance,  , with a divisor of n - 1.

Quizplus · Accepted Answer

The sample variance calculated with a divisor of n-1 gives a better estimate of the population variance than does the sample variance with a divisor of n, due to the unbiasedness property of the former.

The Sample Variance Calculated with a Divisor of N Gives