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You are given the following information about ten random variables, X1, X2, . . ., X10. . Each has an exponential distribution. . E(X;) =

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You are given the following information about ten random variables, X1, X2, . . ., X10. . Each has an exponential distribution. . E(X;) = 10/j, for j = 1, 2, . . ., 10 . The ten random variables are mutually independent. Let W =min(X1, X2, . . ., X10). Calculate the standard deviation of W. Possible Answers A 0.140 B 0.161 C 0.182 D 0.203 E 0.224

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