Dr.Luther has accessed a list of all public elementary schools in the state of California.He randomly selects 20 schools from the list and then randomly selects 100 students at each school to survey.What type of sampling method has Dr.Luther used?
A)cluster
B)simple random
C)stratified
D)systematic

Question

Quizplus · Accepted Answer

Dr. Luther has used cluster sampling method because he has randomly selected a cluster of schools from the list and then selected all the students within each cluster (school) to survey.

DrLuther Has Accessed a List of All Public Elementary Schools