Janice Wishes to Ensure That She Has Equal Numbers of Freshmen

Multiple Choice

Janice wishes to ensure that she has equal numbers of freshmen, sophomores, juniors, and seniors in her sample. She separates the population into subpopulations according to class rank and draws random samples from each subpopulation. Janice has engaged in ___________ sampling.

A) convenience
B) replacement
C) stratified random
D) non-random