Question

IQ scores are normally distributed with a mean μ = 100 and a standard deviation σ = 15.
Based on this distribution, determine
a. The percentage of IQ scores between 100 and 120.
b. The probability of selecting a person at random having an IQ between 100 and
120.
c. The percentage of IQ scores between 88 and 100.
d. The probability of selecting a person at random having an IQ between 88 and
100.
e. The percentage of IQ scores that are 110 or above.
f. The probability of selecting a person at random having an IQ of 110 or above.


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  • CreatedOctober 29, 2015
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