SOLUTION: Assume that adults have IQ scores that are normally distributed with a mean of
105
and a standard deviation
15.
Find
Upper P9​,
which is the IQ score separating t
Algebra ->
Probability-and-statistics
-> SOLUTION: Assume that adults have IQ scores that are normally distributed with a mean of
105
and a standard deviation
15.
Find
Upper P9​,
which is the IQ score separating t
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Question 1044404: Assume that adults have IQ scores that are normally distributed with a mean of
105
and a standard deviation
15.
Find
Upper P9,
which is the IQ score separating the bottom
9%
from the top
91%. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! Need to have the z-value for 0.09 probability
That is -1.34
z=(x-mu)/sd
-1.34=(x-105)/15
-20.1=x-105
x=84.9 or 85
