Author Question: A magazine printed a survey in its monthly issue and asked readers to fill it out and send it in. ... (Read 127 times)

nelaaney · **on:** Jul 24, 2018

A magazine printed a survey in its monthly issue and asked readers to fill it out and send it in. Over 1000 readers did so. This type of sample is called a
a. cluster sample.
b. stratified sample.
c. simple random sample.
d. self-selected sample.

Question 2

Olivia wants to learn a foreign language. To get an idea of how satisfied other students were after taking a foreign language course, she decides to take a random sample of 20 students. If Olivia selects every 100th student from a list of the 2000 students who took a foreign language that year, the sampling method is a
a. simple random sample.
b. stratified random sample.
c. cluster sample.
d. systematic sample.