In order to determine the proportion of voters in a small town who favor a candidate for mayor, the campaign staff takes out an ad in the paper asking voters to call in their preference for mayor. This type of sample is a:
A) convenience sample.
B) simple random sample.
C) multistage random sample.
D) voluntary response sample.

Question

Quizplus · Accepted Answer

This is a voluntary response sample because voters are only included if they choose to call in with their preference. This type of sample is known for its potential bias, as those who are more passionate about the topic may be more likely to respond.

In Order to Determine the Proportion of Voters in a Small