You can form a portfolio of two assets A and B, whose returns have the following characteristics Expected Return Standard Deviation 21% Correlation 8% 18 a. If you demand an expected return of 13%, what are the portfolio weights? (Do not round intermediate calculations. Round your answers to 3 decimal places Stock Portfolio Walight b. What is the ports decimal places) Standard deviation? Use decimals, not percents in your calculations. Do not found intermediate calculations. Enter your answer as a percent round Standard deviation