Question 18 1 pts You manage a risky portfolio with an expected rate of return of 18% and a standard deviation of 28%. The T-bill rate is 8%. Your client's degree of risk aversion is A = 3.5. What proportion, y, of the total investment should be invested in your fund? O 0.4644 O 0.6644 O 0.3644 O 0.5644