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In her MAT135 class, professor Alayeb found that the mean score of the first exam was 51. Suppose that the scores are normally distributed with

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In her MAT135 class, professor Alayeb found that the mean score of the first exam was 51. Suppose that the scores are normally distributed with a standard deviation of 6 points. What is the probability that a randomly selected score is less than 56? P(x 70) = what is the probability that a randomly selected score is between 56 and 70? P(56

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