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The distance between major cracks in a highway follows an exponential distribution with a mean of four miles. (a) what is the standard deviation of the distance between two major cracks
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The distance between major cracks in a highway follows an exponential distribution with a mean of four miles. (a) what is the standard deviation of the distance between two major cracks

User Saobi
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For an exponential distribution, the standard deviation is equal to the mean.

(a) the standard deviation is 4 miles.
User Zachscs
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