Question

If a sample of 69 students is taken from a population of 508 students, the

population variance, o>, is the variance of how many students' heights?

Answer 1

508 students heights.

Explanation:

It must be 508 students heights, because the problem is asking for a population variance, not a sample variance, which is calculated with a different formula.

Remember that population is the total number of subjects that are being studied, and sample is a subgroup of that total number.