Question 2 Use the following information to calculate the expected return and standard deviation of a portfolio that is 50 percent invested in 3 Doors, Inc, and 50 percent invested in Down Co; 3 Doors, Inc. Down Co. Expected return, Eff?) Standard deviation, or " 'What is the standard deviation if the correlation is +1? 0? 1'? As the correlation declines from +1 to 1 here, what do you see happening to portfolio volatility? \"thy