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Mathematics, 26.10.2021 23:10 norahramahi123

The amount of sleep that elementary school children get per night follows a Normal distribution with a mean of 9.5 hours and a standard deviation of 0.55 hours.

(a) Find the proportion of elementary school children who get between 9 and 10 hours of sleep per night. Sketch the

Normal curve and shade the area under the curve that is the answer to the question.

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