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Assume that adults have IQ scores that are normally distributed with a mean of 102.7 and a standard deviation 17.3. Find the first quartile Q1,

Assume that adults have IQ scores that are normally distributed with a mean of 102.7 and a standard deviation 17.3. Find the first quartile Q1, which is the IQ score separating the bottom 25% from the top 75%. (Hint: Draw a graph.) The first quartile is

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