Question: A mobile conversation follows a exponential distribution f(x) = le-x/3 What is the variance of the distribution? O V(X) =. O V (X) = 3

A mobile conversation follows a exponential distribution f(x) = le-x/3 What is the variance of the distribution? O V(X) =. O V (X) = 3 O V ( X ) = Co / H OV(X) = 9

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