Question: Question 2. La Pr(Y = yx = x)Pr(A = ) 2. Expectation (1) (10 pts) Flip a fair coin two times. Let X be the

Question 2.

La Pr(Y = yx = x)Pr(A = ) 2. Expectation (1) (10 pts) Flip a fair coin two times. Let X be the number of heads. Find E[X] and E[X2]. (2) Consider two random variables: X and Y. The expected value of X is ux, and the vari

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