please do part C

Customers at a fast-food restaurant buy both sandwiches and drinks. The joint distribution on the right summarizes the number of sandwiches (X) and drinks (Y) purchased by customers. Complete parts (a) through (f). (a) Find the expected value and variance of the number of sandwiches. E(X) = 1.55 Var(X) = 0.2475 (Type integers or decimals.) (b) Find the expected value and variance of the number of drinks. E(Y) = 1.45 Var(Y) = 0.3475 (Type integers or decimals.) (c) Find the correlation between X and Y. (Hint: You might nd the calculations easier if you use the alternative expression for the covariance.) Corr(X,Y) = D (Round to three decimal places as needed.)