SOLUTION: The lengths of leaves of a plant are normally distributed with mean 5 inches and standard deviation .8inch. Approximately what percentage of leaves have a length between 4 inches

Question 453200: The lengths of leaves of a plant are normally distributed with mean 5 inches and standard deviation .8inch. Approximately what percentage of leaves have a length between 4 inches and 6 inches?
Thank you!
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The lengths of leaves of a plant are normally distributed with mean 5 inches and standard deviation .8inch.
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Approximately what percentage of leaves have a length between 4 inches and 6 inches?
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z(4) = (4-5)/0.8 = -10/8
z(6) = (6-5)/0.8 = 10/8
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P(4 < x < 6) = P(-10/8 < z < 10/8) = 0.7887
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Cheers,
Stan H.

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