17. One year ago, Erik purchased 5,500 shares of Apple Inc.stock for $823,405. Today, he sold those shares for $170.64 a share. What is the total return on this investment if the dividend yield is 3 percent? A. 3.00 percent B. 3.98 percent C. 13.98 percent D. 16.98 percent E. 20.98 percent

18. Jeff decided to accept the risk and purchased a high growth stock. His returns for the past six years were 34 percent, 25percent, -40 percent, 30 percent, -15 percent and 20 percent. What is the standard deviation of these returns? A. 6.46 percent B. 8.84 percent C. 29.73 percent D. 44.20 percent E. 56.15 percent