WHAT AM I DOING WRONG HERE?

PLEASE HELP.

I AM STUCK

This is the question with my work.

\f\f\fA service station has both self-service and full-service islands. On each island, there is a single regular unleaded pump with two hoses. Let X denote the number of hoses being used on the self-service island at a particular time, and let Y denote the number of hoses on the full-service island in use at that time. The joint pmf of X and Y appears in the accompanying tabulation. P(x, y) y 0 1 2 0 0.06 0.09 0.04 X 0.09 a 0.06 2 0.05 0.1 0.1i.) E(Y) (Give decimal answer to two places past the decimal.) Submit Answer Tries 0/5 j.) E(XY) (Give decimal answer to two places past the decimal.) Submit Answer ] Tries 0/5 k.) Cov(X,Y) (Give decimal answer to THREE places past the decimal.) Submit Answer Tries 0/5 I.) Standard deviation of X (Give decimal answer to THREE places past the decimal.) Submit Answer Tries 0/5 m. ) Standard deviation of Y (Give decimal answer to THREE places past the decimal.) Submit Answer Tries 0/5 n.) Corr(X,Y) (Give decimal answer to THREE places past the decimal.) Submit Answer Tries 0/5a.) Find a. (Give decimal answer to two places past the decimal.) 0.4100 You are correct. Your receipt no. is 162-6961 (?) Previous Tries b.) Compute P(X =1 and Y = 2). (Give decimal answer to two places past the decimal.) 0.0600 You are correct. Your receipt no. is 162-2953 (?) Previous Tries c.) What is P(Xs1)? (Give decimal answer to two places past the decimal.) 0.7500 You are correct. Your receipt no. is 162-6539 (?) Previous Tries d.) What is P(X=1/Y=2)? (Give decimal answer to two places past the decimal.) 0.3000 You are correct. Your receipt no. is 162-7756 (?) Previous Tries e.) What is E(Y|X=0)? (Give decimal answer to two places past the decimal.) 0.8900 You are correct. Your receipt no. is 162-9772 (2) Previous Tries f.) What is Var(Y|X=0)? (Give decimal answer to two places past the decimal.) 0.5200 You are correct. Your receipt no. is 162-396 (?) Previous Tries g.) Are X and Y independent random variables? Incorrect Yes Correct: No You are correct. Your receipt no. is 162-6563 (?) Previous Tries h.) E(X) (Give decimal answer to two places past the decimal.) 1.0600 You are correct. Your receipt no. is 162-1108 (?) Previous Tries