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Kindergarten children have heights that are approximately normally distributed about a mean of 39 inches...

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Kindergarten children have heights that are approximately normally distributed about a mean of 39 inches and a standard deviation of 2 inches. If a random sample of 18 is taken, what is the probability that the sample of kindergarten children has a mean height of less than 39.25 inches? (Round your answer to four decimal places.)Enter a number.

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