Question: Let X be a random variable with the following probability mass function: X=x | 0 1 2 3 P(X=x) | 0.10 0.20 0.30 0.40 a)

Let X be a random variable with the following probability mass function: X=x | 0 1 2 3

P(X=x) | 0.10 0.20 0.30 0.40

a) FindP(X2).

b) FindP(X2|X1).

c) Find E(X).

d) Find Var(X).

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