Mean and standard deviation of number of correct answers

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A test consist of 30 multiple choice questions, each with five possible answers, only one of which is correct. find the mean and standard deviation of the number of correct answers.

Reference no: EM13149037

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Mean and standard deviation of number of correct answers : A test consist of 30 multiple choice questions, each with five possible answers, only one of which is correct. find the mean and standard deviation of the number of correct answers.
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