A researcher who is conducting an opinion survey asks viewers who are watching a political debate to dial a toll-free number and record their opinion on the "question of the day." What type of sample has the researcher created?

Question

Quizplus · Accepted Answer

This is a biased sample because only viewers who are watching the political debate have the opportunity to weigh in on the "question of the day," which may not be representative of the larger population.

A Researcher Who Is Conducting an Opinion Survey Asks Viewers