To Study the Number of Credit Hours Taken by a Typical

Multiple Choice

To study the number of credit hours taken by a typical student, Shawna asks the registrar to provide
E-mail addresses for 10 freshmen, 10 sophomores, 10 juniors, and 10 seniors. From each group, she
Asks for one whose student ID ends in 0, one whose ends in 1, and so forth. a. What method of
Sampling did she use?

A) Stratified
B) Systematic
C) Cluster
D) Random