The population variance is
A) an estimate of the sample variance.
B) usually an unknown that we try to estimate.
C) calculated exactly like the sample variance.
D) a biased estimate.

Question

Quizplus · Accepted Answer

The population variance is usually an unknown that we try to estimate. Unlike the sample variance, which is calculated using the sample data, the population variance is calculated using the entire population data. However, in practice, the entire population data is often not available, and we have to estimate the population variance using sample data.

The Population Variance Is