In the country of United States of Heightlandia, the height measurements of ten-year-old children are approximately normally distributed with a mean of 56 inches, and standard deviation of 3 inches. A) What is the probability that a randomly chosen child has a height of less than 54.7 inches?

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A: given data n = 400x¯ = 40σ = 2590% ci for μ = ?here population sd is known so use z statistic.

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