Mean and standard deviation for the number of left-handed

Reference no: EM13101958

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.

Reference no: EM13101958

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