Assume that adults have IQ scores that are normally distributed with a mean of 101.8 and a standard deviation 16.4. Find the first quartile Q1​, which is the IQ score separating the bottom​ 25% from...

Assume that adults have IQ scores that are normally distributed with a mean of
101.8and a standard deviation
16.4.
Find the first quartile
Q1​,

which is the IQ score separating the bottom​ 25% from the top​ 75%. (Hint: Draw a​ graph.)