Probability Security Returns if State of of State of State Occurs Economy Economy Roll Ross Bust 0.40 -17% 18% Boom 0.60 28% 7% Calculate the expected return on a portfolio of 55 percent Roll and 45 percent Ross by filling in the following table: Note: A negative value should be indicated by a minus sign. Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places. Probability State of Economy Portfolio Return if of State of Economy Product State Occurs Bust 0.40 % % Boom 0.60 %: :% E(Rp)= %