About what percentage of the data lies within 2 standard deviations of the mean in a normal distribution? 47.5% 68% 95% 99.7%

Answer-

About what 95% of the data lies within 2 standard deviations of the mean in a normal distribution.

Solution-

The Empirical Rule (68-95-99.7%)-

This rule tells us that

Therefore, about what 95% of the data lies within 2 standard deviations of the mean in a normal distribution.

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maximum area = xy = (16)(32) = 512 ft2

to maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.'

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