The editor of the newspaper at a large university wants to measure student opinion on a proposed change in graduation requirements. The editor randomly selects 100 freshman, 100 sophomores, 100 juniors and 100 seniors to take a short survey. This plan is an example of what kind of sampling?
A) Systematic sampling
B) Stratified random sampling
C) Convenience sampling
D) Simple random sampling
E) Cluster sampling
Answer: stratified random sampling
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.