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In a large population of college-educated adults the mean IQ is 118 with a standard deviation of 20. Suppose 200 adults from this population are randomly selected for a market research campaign

In a large population of college-educated adults, the mean IQ is 118 with a standard deviation of 20. Suppose 200 adults from this population are randomly selected for a market research campaign: The probability that the sample mean IQ is greater than 120 is what?

 

Apr 05 2020 Read more Less More

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