QUESTION 6 6a. A stock has returns of 27 percent, 13 percent, -7 percent, 11 percent, and - 12 percent over the last five years. Find the Geometric average return for the stock. Spoints 6b. You plan to go to graduate school in five years. The total cost of graduate education will be $150,000 by the time you go. You currently have $75,000 to invest. What annual rate of return must you earn on your investment to cover the cost of your graduate school education? 3pts