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Mathematics, 29.06.2020 02:01 Thefiles

A quiz consists of 40 multiple choice questions, each with five possible answers, only one of which is correct. If a student guesses on each question, what is the mean and standard deviation of the number of correct answers? Round to the nearest thousandth.

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A quiz consists of 40 multiple choice questions, each with five possible answers, only one of which...

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