The table below summarizes the expected returns and standard deviations of stock A and B. The correlation coefficient between the two stocks is 0.45. An investor considers an investment portfolio with $6000 invested in stock A and $4000 invested in stock B.

Stock	Expected Return	Standard Deviation
A	12%	22%
B	8%	18%

Answer the following questions (5 marks)

1. What is the portfolios expected return? (1 mark)
2. What is the covariance between stock A and B? (1 mark)
3. What are the portfolio's variance and standard deviation? (2 marks)
4. d. What is the portfolios expected Sharpe ratio if the interest rate is 4%? (1 mark)