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What is the probability that the sample mean scores will be

A typical adult has as average IQ score of 105 with a standard deviation of 20. If 25 randomly selected adults are given an IQ test, what is the probability that the sample mean scores will be between 85 and 125 points? What is the probability that the sample mean scores will be between 100 and 115 points.

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Basic Statistics: What is the probability that the sample mean scores will be

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