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    Average IQ Probability

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    Assume that adults have a normally distributed IQ scores with a mean of 100 and a standard deviation of 15. Find the probability that a randomly selected adult has an IQ less than 135.

    P(IQ < 135) =

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    Solution Preview

    Let Z=(IQ-100)/15. Then Z~N(0,1), the standard normal ...

    Solution Summary

    This solution shows calculations to determine the probability of a randomly selected adult that has n IQ less than 135.