What percent of the butterflies had the wingspans

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Reference no: EM132049528

A biologist found the wingspans of a group of monary butterflies to be normally distributed with a mean of 54.5 mm and a standard deviation of 2.6 mm. What percent of the butterflies had the following wingspans? (Round your answers to one decimal place.)

(a) less than 48.7 mm

%

(b) between 49 and 56 mm

%

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