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01-07-2019
Mathematics

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Several psychology students are unprepared for a surprise true/false test with 18 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 14 correct answers)? Why or why not?

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01-07-2019

Answer: a

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