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Find the mean and standard deviation for the numbers

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Reference no: EM132845073

Several psychology students are unprepared for a surprise? true/false test with 17 ?questions, and all of their answers are guesses.

a. Find the mean and standard deviation for the number of correct answers for such students.

b. Would it be unusual for a student to pass by guessing? (which requires getting at least 12correct? answers)? Why or why? not?

Reference no: EM132845073

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