Standard deviation for the number


Several psychology students are unprepared for a surprise true/false test with 11 questions, and all of their answers or guesses.

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

Would it be unusual for a student to pass by guessing a getting at least 5 correct answers?

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Basic Statistics: Standard deviation for the number
Reference No:- TGS0723572

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