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The Intelligence Quotient (IQ) test scores are normally distributed with a mean of 100 and a standard deviation of 15. What is the probability that a person would score 130 or more on the test?

  • statistics -

    Using the normal distribution calculation tool at http://psych.colorado.edu/~mcclella/java/normal/accurateNormal.html ,
    I get 2.28% for the answer.

    Enter 100 for the mean and 15 for the std dev. Then enter 130 for start and a very high number for which the probability is negligible (like 200 or more) for the end, and hit the "enter " key.

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