You have two stocks in your portfolio. The following parameters's values are given to you. Please calculate your portfolio risk. You must write your answer as a percentage with two decimals. without the sign (e.g. if your answer is 20.22%, write down 20.22). (To calculate the portfolio risk, you must calculate the variance first, and then calculate the standard deviation) Weight of Stock A: 45% Weight of Stock B: 55% Risk of Stock A(sigma): 15% Risk of Stock B(sigma): 8.5% Correlation coefficient of A&B (rho): 0.3