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The mean number of books read last year by a group of students is normally...

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Algebra

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The mean number of books read last year by a group of students is normally distributed with a mean of 10 and a standard deviation of 6. If Austin is 0.5 standard deviations below the mean and Kaleigh is 2 standard deviations above the mean, how many more books did Kaleigh read than Austin?

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