Assume that Verizon Wireless is interested in studying the pricing expectations of its customers. If the study calls for selecting at random 100 people from each of three age groupings, ____ sampling is being used.
A) random
B) stratified
C) quota
D) area
E) experimental

Question

Quizplus · Accepted Answer

Stratified sampling involves dividing the population into subgroups or strata based on some characteristic, and then selecting samples from each stratum. In this case, the population is being divided into three strata based on age groupings, and a random sample is being selected from each stratum. Therefore, stratified sampling is being used.

Assume That Verizon Wireless Is Interested in Studying the Pricing