A portfolio has 45% of its funds invested in Security C and 55% of its funds invested in Security D. Security C has an expected return of 8.3% and a standard deviation of 10.0%. Security D has an expected return of 6.3% and a standard deviation of 9.2%. The securities have a coefficient of correlation of 0.9. Calculate the portfolio standard deviation. ENTER YOUR ANSWER AS A PERCENTAGE WITH ONE DECIMAL PLACE (e.g., 12.1) AND NOT AS A DECIMAL (e.g., 0.121). ROUND TO THE NEAREST TENTH OF A PERCENT. DO NOT USE THE PERCENT SIGN (%) IN YOUR ANSWER. Your