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Question # 3 [10 pts] The distribution of IQ scores for high school graduates is normally distributed with mean 400 and standard deviation 80.

Question # 3 [10 pts] The distribution of IQ scores for high school graduates is normally distributed with mean 400 and standard deviation 80. a) What is the 90th percentile of this distribution of the IQ scores? b) Find the IQ scores that form the boundaries of the middle 60% of the distribution of the scores. c) What is the probability that a randomly selected score exceeds 375?

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