AP Statistics · Past multiple choice · Question 9, 2010 course description · Calculator allowed
Few surveys returned
Only a small share of a random sample sent back a mailed survey. Explain how that can bias what the survey finds.
The lesson this question tests
1 Read the question
The question is College Board's: sample question 9 in AP Statistics Course Description, Effective Fall 2010. It starts on page 26 of the PDF. College Board no longer posts this edition, so it opens from the copy the Internet Archive saved on January 1, 2011. A graphing calculator is allowed, as on the exam.
Open Question 9 (PDF, page 26)
2 Pick your answer
Question and answer key: College Board, from the Internet Archive. The title and summary are ours.