Left-Handed People Ten percent of American adults are left-handed. A statistics class has 25 students in attendance.

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Left-Handed People Ten percent of American adults are left-handed. A statistics class has 25 students in attendance.

a. Find the mean and standard deviation for the number of left-handed students in such classes of 25 students.

b. Would it be unusual to survey a class of 25 students and find that 5 of them are left-handed? Why or why not?

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Elementary Statistics

ISBN: 9780201775709

9th Edition

Authors: Mario F. Triola

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