PROBLEM 4 [4 points] (a) Let im be the correlation coefficient for return on stock i with the market; i the standard deviation of the return on stock i; and m the standard deviation of the return on the market. Find an expression for in terms of im,i, and m. [1 pt] (b) Given: Treasury bills yield 6% and the market risk premium is 7%. (b.i) Suppose you have $1 million to invest. Construct a portfolio with a beta of 0.60. [1 pt] (b.ii) What is the expected return to the portfolio constructed in (b.i)? [2 pts]