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Suppose that for a certain mathematics class the scores are normally distributed with a mean...

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Suppose that for a certain mathematics class the scores are normally distributed with a mean of 75 and a standard deviation of 9 The teacher wishes to give A s to the top 5 of the students and F s to the bottom 5 The next 15 in either direction will be given B s and D s with the other students receiving C s What is the cumulative distribution Grade A BCDF Percent 5 15 15 5 X Cumulative

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