Nonoverlapping groups in random sampling of a population are called:
A)Clusters.
B)A frame.
C)Strata.
D)Stages.

Question

Quizplus · Accepted Answer

Strata are mutually exclusive subpopulations within a larger population. When using random sampling, it is often beneficial to divide the population into strata that are as different as possible from each other to reduce sampling error. Nonoverlapping groups are therefore called strata.

Nonoverlapping Groups in Random Sampling of a Population Are Called