2 value 10.00 points Security Returns If State Occurs Roll -11% State of Economy Probability of State of Economy Ross 15% Bust Boom 40 60 Calculate the expected return on a portfolio of 50 percent Roll and 50 percent Ross by filling in the following table: (Round your answers to 4 decimal places. Negative answers should be indicated by a minus sign. Omit the "%" sign in your response.) State of Economy Probability of State of Economy Portfolio Return If State Occurs Product Bust 40 60 Boom E(Ap) =