Question: 1. The distribution function for the duration of a certain soap opera (in tens of hours) is (a) Find E(X). (b) Show that Var(X) does

1. The distribution function for the duration of a certain soap opera (in tens of hours) is

16 if x 4 F(x) 22 if x < 4.

(a) Find E(X).

(b) Show that Var(X) does not exist.

16 if x 4 F(x) 22 if x < 4.

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