Question

Suppose that the average IQ score is normally distributed with a mean of 100 and a standard deviation of 16. In addition to providing the answer, state the relevant Excel commands.
a. What is the probability a randomly selected person will have an IQ score of less than 80?
b. What is the probability that a randomly selected person will have an IQ score greater than 125?
c. What minimum IQ score does a person have to achieve to be in the top 2.5% of IQ scores?



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  • CreatedJanuary 28, 2015
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