You are analyzing pen pal e-mails between children in Kenya and the United States. Three social studies teachers at a junior high school in the United States have been using this pen pal project in their classes to promote cultural understanding and have been collecting copies of the e-mails over the last 10 years. Together, they have collected almost 50,000 e-mails. You draw the names of 25 students out of a hat and then read all of the e-mails exchanged between each of those students and their pen pals. Which form of sampling are you using?
A) stratified
B) theoretical
C) cluster
D) convenience

Question

Quizplus · Accepted Answer

Cluster sampling is used here because you randomly selected a group (25 students) and then included all the e-mails exchanged by those students, rather than selecting individual e-mails randomly.

You Are Analyzing Pen Pal E-Mails Between Children in Kenya