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A test consists of 30 multiple choice questions, each with five possible answers, only one of which is correct. find the mean and the standard deviation of the number of correct answers. round the answers
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Jun 22, 2019
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A test consists of 30 multiple choice questions, each with five possible answers, only one of which is correct. find the mean and the standard deviation of the number of correct answers. round the answers to the nearest hundredth.
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The standard deviation is 0.
Qiang Xu
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Jun 28, 2019
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Qiang Xu
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