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Suppose that IQ scores in one region are normally distributed with a standard deviation of 18. Suppose also that exactly 60% of the individuals from

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Suppose that IQ scores in one region are normally distributed with a standard deviation of 18. Suppose also that exactly 60% of the individuals from this region have IQ scores of greater than 100 (and that 40% do not). What is the mean IQ score for this region? Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place. E X 5

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