The Career Placement department at a university wants to
administer a survey to determine student awareness of the resources
offered. The department expects that student awareness of the
Career Placement resources will vary significantly depending on how
many years a student has attended the university, so they plan to
randomly select 30 freshmen, 30 sophomore, 30 juniors, and 30
seniors. This type of sample can be best described as a
(A) simple random sample.
(B) systematic sample.
(C) stratified sample.
(D) cluster sample.
(E) block sample.