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Robins are common birds in North America. Suppose that the wingspan of robins is approximately normal with mean 14 inches and standard deviation 0.7 inches.
-What proportion of robins have wingspans between 12.5 and 13.5 inches? Report your answer with three decimal places.

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Robins are common birds in North America. Suppose that the wingspan of robins is approximately normal with mean 14 inches and standard deviation 0.7 inches.
-What proportion of robins have wingspans between 12.5 and 13.5 inches? Report your answer with three decimal places.

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The Answer of Use the following 
Robins are common birds in North America. Suppose that the wingspan of robins is approximately normal with mean 14 inches and standard deviation 0.7 inches.
-What proportion of robins have wingspans between 12.5 and 13.5 inches? Report your answer with three decimal places.

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