Calculate the coefficient of variation (CV) for a) Stock X. b) Stock Y. c) Using CV as your sole decision making criterion, which stock is a better investment? a) 1.46; b) 1.77; c) Stock X a) 0.68; b) 0.56; c)Stock X a) 0.68;b)0.56; c) Stock Y a) 1.46; b) 1.77; ) Stock Y