Crazy Train Automotive stock has an expected return of 9% and a standard deviation of 16.5%. Mr. Brownstone Property Management Co. stock has an expected return of 18% and a standard deviation of 28%. The stocks have a correlation of 0.55. Assuming a portfolio is comprised of an investment of $70,000 in Mr. Brownstone stock and $30,000 in Crazy Train stock, answer the following: (a) what is the expected return of the portfolio? (2 points) (b) what is the coefficient of variation for the portfolio? (2 points) (c) what is the coefficient of variation for Crazy Train stock? [2 points) (d) what is the coefficient of variation for Mr. Brownstone stock? [2 points]