Concept explainers
To identify each sample as biased or unbiased with reason
Answer to Problem 35SR
The sample is biased because the people are at rock concert so they already prefer a rock music and likely to prefer rock radio station.
Explanation of Solution
Given information:
Every fifth person in the rock concert is asked to name their favorite radio station
The sample is taken at random, but the question is about their favorite radio station at the rock concert. The majority of the people at rock concert already prefer rock music and would likely to prefer a rock radio station. This is a biased sample. If the people were asked the same question in any mash up song concert, the sample would be unbiased.
Therefore, it is a biased sample because the people already prefer a rock music and rock radio station as they are at rock concert
Chapter 12 Solutions
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