In each situation, indicate whether the method of data collection is biased.
-Ask the students at the gym on a Tuesday afternoon how many hours a week they work out to estimate the average amount of time students at the university work out.
A) Biased
B) Not biased

Question

Quizplus · Accepted Answer

Biased, because only students at the gym (who are likely working out) were sampled. Students who don't go to the gym (and thus possibly don't work out) were not included in the sample. Another potential source of bias is that, for various reasons, the students asked the question may exaggerate about the amount of time they work out each week.

In Each Situation, Indicate Whether the Method of Data Collection