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Find the probability of an adults IQ score.

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Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15.

Find the probability that a randomly selected adult has a IQ between 110 and 120.

Find the probability that a randomly selected adult has an IQ less than 135.

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Solution Summary

This solution provides calculations for the two probabilities.

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1. x1 = 110, x2 = 120, m = 100, s = 15

z1 = (x1 - m)/s = (110 - 100)/15 = 0.667 and z2 = (x2 - m)/s = ...

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