Question
Asked Oct 20, 2019
99 views
6.3.19
 
 
 
 
 
Assume that adults have IQ scores that are normally distributed with a mean of 108

and a standard deviation of 15. Find the third quartile

Upper Q 3
​,
which is the IQ score separating the top​ 25% from the others..
The third​ quartile,
Upper Q 3
​,

is

nothing
.

​(Round to one decimal place as​ needed.)

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Expert Answer

Step 1

6.3.19)

From the given information, let us define the random variable X as the IQ scores follows normal distribution has a mean of 108 a...

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