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Assume that adults have IQ scores that are normally distributed with a mean of 101.4 and a standard deviation 15.3. Find the first quartile Q1,
Assume that adults have IQ scores that are normally distributed with a mean of
101.4
and a standard deviation
15.3.
Find the first quartile
Q1,
which is the IQ score separating the bottom 25% from the top 75%. (Hint: Draw a graph.)
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