Assume that adults have IQ scores that are normally distributed with a mean of 101and a standard deviation 23.7. Find the first quartile Q1, which is the IQ score separating the bottom 25% from the...

Assume that adults have IQ scores that are normally distributed with a mean of 101and a standard deviation 23.7.
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________________.

(Type an integer or decimal rounded to one decimal place as needed.)

Jun 09, 2022

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Assume that adults have IQ scores that are normally distributed with a mean of 101and a standard deviation 23.7. Find the first quartile Q1, which is the IQ score separating the bottom 25% from the...

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Assume that adults have IQ scores that are normally distributed with a mean of 101and a standard deviation 23.7. Find the first quartile Q1​, which is the IQ score separating the bottom​ 25% from the...

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Assume that adults have IQ scores that are normally distributed with a mean of 101and a standard deviation 23.7. Find the first quartile Q1, which is the IQ score separating the bottom 25% from the...