A portfolio is created by investing 8200 into Stock A, 6800 into Stock B, and 5000 into Stock C. Stock A has an expected annual return of 7%, Stock B has an expected annual return of 14%, and Stock C has an expected annual return of 13%. The covariance matrix for the returns of the three stocks is provided below. Find the volatility of the portfolio. Stock A Stock B Stock C Stock A 0.360 0.03 0.081 Stock B 0.03 0.250 -0.075 Stock C 0.081 -0.075 0.090 0.3472 0.3275 0.4061 0.3668 0.3865