Only answer 6 and 7, show all work please

Use the following information on states of the economy and stock returns to answer Questions 4-7: Page388 4. Expected Returns (LO1, CFA1) Calculate the expected returns for Roll and Ross by filling in the following table (verify your answer by expressing returns as percentages as well as decimals): 5. Standard Deviations (LO1, CFA2) Calculate the standard deviations for Roll and Ross by filling in the following table (verify your answer using returns expressed in percentages as well as decimals): 6. Portfolio Expected Returns (LO2, CFA3) Calculate the expected return on a portfolio of 55 percent Roll and 45 percent Ross by filling in the following table: 7. Portfolio Volatility (LO2, CFA5) Calculate the volatility of a portfolio of 35 percent Roll and 65 percent Ross by filling in the following table: Use the following information on states of the economy and stock returns to answer Questions 4-7: Page388 4. Expected Returns (LO1, CFA1) Calculate the expected returns for Roll and Ross by filling in the following table (verify your answer by expressing returns as percentages as well as decimals): 5. Standard Deviations (LO1, CFA2) Calculate the standard deviations for Roll and Ross by filling in the following table (verify your answer using returns expressed in percentages as well as decimals): 6. Portfolio Expected Returns (LO2, CFA3) Calculate the expected return on a portfolio of 55 percent Roll and 45 percent Ross by filling in the following table: 7. Portfolio Volatility (LO2, CFA5) Calculate the volatility of a portfolio of 35 percent Roll and 65 percent Ross by filling in the following table