A local talk radio station conducts a poll to determine if its listeners favor or oppose the president's proposed actions on judicial appointments. To express their opinions, listeners are asked to call, email, or text-message the radio station. The poll results in 89.38 percent of the responders opposing the proposed judicial appointments.
In this situation, 89.38 percent is:
A) likely to overestimate the true percentage since, typically, only people with strong (and usually negative) opinions will respond.
B) likely to underestimate the true percentage since, typically, only people with strong (and usually positive) opinions will respond.
C) exact since it came from a census.
D) very accurate since it came from a simple random sample.

Question

Quizplus · Accepted Answer

This is because the poll was conducted through voluntary response, which means that only people who are strongly inclined to respond will do so, leading to a biased sample that is unlikely to be representative of the general population.

A Local Talk Radio Station Conducts a Poll to Determine