SOLUTION: if IQ scores are normally distributed with a mean of 100 and a standard deviation of 5, what is the probability that a person chosen at random will have an IQ score greater than 11

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Question 405414: if IQ scores are normally distributed with a mean of 100 and a standard deviation of 5, what is the probability that a person chosen at random will have an IQ score greater than 110?

Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
From the 68-95-99.7 rule for normal distributions, 110 is 2 sd's higher than the mean 100. Hence the probability the IQ is greater than 110 is %281-0.95%29%2F2+=+0.025.