Question: Find the first quartile Q 1 , which is the IQ score separating the bottom 25% from the top 75%. Assume that adults have IQ

Find the first quartile Q1, which is the IQ score separating the bottom 25% from the top 75%.

Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wechsler test).

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