A researcher who is conducting an opinion survey asks viewers who are watching a political debate to dial a 1-800 number and record their opinion to the "question of the day." In this case the researcher is likely to have

Question

Quizplus · Accepted Answer

By asking viewers to call a specific number, the researcher is only getting opinions from a specific subset of the population that is watching the political debate. This could potentially introduce bias into the sample, as certain groups of people may be more likely to call in than others. Therefore, this is a biased sample.

A Researcher Who Is Conducting an Opinion Survey Asks Viewers