Question: 1 The distribution function for the duration of a certain soap opera (in tens of hours) is 1- (16/x) if x 4 | F(x) =

1 The distribution function for the duration of a certain soap opera (in tens of hours) is 1- (16/x) if x 4 | F(x) = { 1-

(a) Find E(X).

(b) Show that Var(X) does not exist. if x < 4.

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