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The IQs of students at Wilson Elementary School were measured recently and found to be normally...

The IQs of students at Wilson Elementary School were measured recently and found to be normally distributed with a mean of 100 and a standard deviation of 12. What is the probability that a student selected at random will have the following IQs? (Round your answers to four decimal places.) (a) 140 or higher = (b) 120 or higher = (c) between 100 and 120 = (d) 90 or less =

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