Question: Let X be a discrete random variable with the following PMF a. Find EX. b. Find Var(X) and SD(X). c. If Y = 2/X, find

Let X be a discrete random variable with the following PMFPx (k) = 0.5 0.3 0.2 0 for k = 1 for k = 2 for k= 3 otherwise

a. Find EX.

b. Find Var(X) and SD(X).

c. If Y = 2/X, find EY .

Px (k) = 0.5 0.3 0.2 0 for k = 1 for k = 2 for k= 3 otherwise

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