The difference between the sample variance and the variance estimate is that the variance estimate _____:
A)underestimates the population variance
B)is computed with N-1 in the denominator
C)is computed with the degrees of freedom in the denominator
D)both b and c

Question

Quizplus · Accepted Answer

The variance estimate is computed with the degrees of freedom in the denominator, which is N-1. This adjustment corrects for the bias in the sample variance, making it an unbiased estimator of the population variance. Therefore, D is the correct answer as it includes both options B and C.

The Difference Between the Sample Variance and the Variance Estimate