Representative Sample? You want to determine the average percentage of classes skipped by first-year students at a small college during a particular semester. Determine, with an explanation, which of the following samples are likely to be representative and which are not likely to be representative.
• 100 first-year students who belong to a sorority or fraternity
• 100 first-year students who play a varsity sport
• The first 100 first-year students whom you meet at the student union
• 100 first-year students taking honors humanities courses
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