Suppose you have $15,000 to invest and you have purchased the following securities. Stock A Stock B $ Amount $9,000 $6,000 Mean return 10.85% 20.45% Standard deviation (sample) 35% 15% Correlation coefficient -0.85 Calculate the following statistics: (1/100 of one percent without % sign, e.g. 12.671, if a negative percentage, -9.56): 1) Expected portfolio return: 2) Expected portfolio standard deviation