Security F has an expected return of 11.50 percent and a standard deviation of 44.50 percent per year. Security G has an expected return of 16.50 percent and a standard deviation of 63.50 percent per year.

a. What is the expected return on a portfolio composed of 25 percent of Security F and 75 percent of Security G? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)

b. If the correlation between the returns of Security F and Security G is .20, what is the standard deviation of the portfolio described in part (a)? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)