In the general form of a multi-index model in which expected returns of a security, i, can be expressed as R, -a, + bal + b2l2+b/3/3 + - + + what is the variance of ai? QUESTION 38 Solving the system of equations obtained from the constrained optimization problem to determine the efficient frontier with short sales and riskless lending or borrowing results in Z-values of: Z1-0.5, Z2-0.5, Z3-0.25 Security 1 has an expected return of 10% and a standard deviation of 49. Security 2 has an expected return of 15% and a standard deviation of 10%. Security 3 has an expected return of 20% and a standard deviation of 149 Calculate the expected return of the portfolio composed of the three assets. Assume the lending and borrowing rate is 59. (Enter your answer as a number rounded to two decimal places without the percentage sign. For example enter 13.50546 as 13:51: Enter 0.17844 as 17.34) In the general form of a multi-index model in which expected returns of a security, i, can be expressed as R, -a, + bal + b2l2+b/3/3 + - + + what is the variance of ai? QUESTION 38 Solving the system of equations obtained from the constrained optimization problem to determine the efficient frontier with short sales and riskless lending or borrowing results in Z-values of: Z1-0.5, Z2-0.5, Z3-0.25 Security 1 has an expected return of 10% and a standard deviation of 49. Security 2 has an expected return of 15% and a standard deviation of 10%. Security 3 has an expected return of 20% and a standard deviation of 149 Calculate the expected return of the portfolio composed of the three assets. Assume the lending and borrowing rate is 59. (Enter your answer as a number rounded to two decimal places without the percentage sign. For example enter 13.50546 as 13:51: Enter 0.17844 as 17.34)