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Weights of four-year-olds are Normally distributed, with a mean of 40 pounds and a standard deviation of 1.3 pounds. At
her four-year checkup, Hannah's weight measures in the 90th percentile. How much does Hannah weigh?
Find the z-table here.
O 38.3 pounds
O 37.5 pounds
O 41.7 pounds
O 42.3 pounds

Sagot :

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