When n-1 is used in the denominator to compute variance,
A) the data set is a sample.
B) the data set is a population.
C) the data set could be either a sample or a population.
D) the data set is from a census.

Question

Quizplus · Accepted Answer

when using n-1 in the denominator to compute variance, we are calculating a sample variance, not a population variance. Therefore, the data set must be a sample.

When N-1 Is Used in the Denominator to Compute Variance