Probability of the sample mean

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Assuming IQ scores have mean 100 and standard deviation 15, if we randomly sample 225 people's scores, the probability of their sample mean IQ being less than 99 is 0.16, and the probability of being greater than 101 is also 0.16. What is the probability of the sample mean being more than 1 point away from 100?

Reference no: EM131816939

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