You have the following probability distribution of returns for BBB company. Calculate the expected rate of return given three possible economic conditions. Do not round your intermediate calculations. Economic Prob. Return Conditions 25% 17% Strong 50% 8.5% Normal 25% -18.0% Weak a. 4.50% b. 18.00% C. 4.00% d. 3.50% e. 13.75%