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In a survey of first graders, their mean height was 50.4 inches with a standard deviation...

In a survey of first graders, their mean height was 50.4 inches with a standard deviation of 3.55 inches. Assuming the heights are normally distributed, what height represents the first quartile of these students? 48.01 inches 46.84 inches 43.30 inches 52.79 inches

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