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In: Statistics and Probability

IQ scores in a certain population are normally distributed with a mean of 97 and a...

IQ scores in a certain population are normally distributed with a mean of 97 and a standard deviation of 12. (Give your answers correct to four decimal places.)

(a) Find the probability that a randomly selected person will have an IQ score between 92 and 98.


(b) Find the probability that a randomly selected person will have an IQ score above 90


.

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