# Answer to Question #43537 in Statistics and Probability for Lisa

Question #43537

Let X be given by its "distribution" function F(x), such that:

F(x) = 0 if x â‰¤ 0

F(x) = (x^2)/4 if 0<xâ‰¤2

F(x) =1 if x>2

Find E(x), var (x) and std deviation (x).

F(x) = 0 if x â‰¤ 0

F(x) = (x^2)/4 if 0<xâ‰¤2

F(x) =1 if x>2

Find E(x), var (x) and std deviation (x).

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