AP Statistics · Past multiple choice · Question 9 · Calculator allowed
Spread in the count of left-handers
With about one person in ten left-handed, find the standard deviation of the number of left-handers in groups of 20.
The lesson this question tests
1 Read the question
The question is College Board's: sample question 9 in AP Statistics Course and Exam Description, Effective Fall 2026. It starts on page 169 of the PDF. A graphing calculator is allowed, as on the exam.
Open Question 9 (PDF, page 169)
2 Pick your answer
Question and answer key: College Board. The title and summary are ours.