One source of error in pre-election polls is that some people in the sample say they are undecided, but in fact, they know whom they are going to vote for. This is an example of:
A) a nonsampling error.
B) a random sampling error.
C) a sampling error, but not a random sampling error.
D) incorrect randomization.

Question

Quizplus · Accepted Answer

This is an example of a nonsampling error since it is not related to the way the sample was selected but rather a mistake in how the participants answered the question.

One Source of Error in Pre-Election Polls Is That Some