SOLUTION: The Intelligence Quotient (IQ) test scores are normally distributed with a mean of 100 and a standard deviation of 12. What is the probability that a person would score between 1

SOLUTION: The Intelligence Quotient (IQ) test scores are normally distributed with a mean of 100 and a standard deviation of 12. What is the probability that a person would score between 1

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Question 1158330: The Intelligence Quotient (IQ) test scores are normally distributed with a mean of 100 and a standard deviation of 12. What is the probability that a person would score between 109.1 and 129.3?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
z=(x-mean)/sd
=(109.1-100)/12 =0.76
and
(129.3-100)/12=2.44
the probability of z between those two values is 0.2163
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