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QUESTION 13 "Treasury bills are paying a 4.5% rate of return. A risk-averse investor with a risk aversion of A = 1.5 should invest entirely in a risky portfolio with a standard deviation of 7% only if the risky portfolio's expected return is at least Note: Express your answers in strictly numerical terms. For example, if the answer is 5%, write 0.05" QUESTION 15 "A security with normally distributed returns has an annual expected return of 15% and standard deviation of 9%. The probability of getting a return between -2.64% and 32.64% in any one year is Note: Express your answers in strictly numerical terms. For example, if the answer is 5%, write 0.05