The market portfolio has an expected return of 12.1 percent and a standard deviation of 22.1 percent. The risk-free rate is 5.1 percent.

a. What is the expected return on a well-diversified portfolio with a standard deviation of 9.1 percent? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)

b. What is the standard deviation of a well-diversified portfolio with an expected return of 20.1 percent? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16)