e) What is the expected return on the following portfolio? Assuming the correlation coefficient between A and B is 0.5, the correlation coefficient between A and C is 0.1, and the correlation coefficient between B and C is 0.3, what is the standard deviation of the portfolio?

Stock	Expected Return	Standard Deviation	Number of Shares	Stock Price ($)
A	9%	15%	750	35
B	12%	25%	960	20
C	16%	40%	1000	50