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 5% bottom half. The next 15% in either direction will be given B’s or D’s, with the other students receiving C’s. Find the cutoff for receiving an A grade

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To find the cutoff for receiving an A grade we need to determine the score that separates the top 5 ... View the full answer