28) A stock had returns of 5 percent, 14 percent, 11 percent, -8 perce,lu0 What is the standard deviation of these returns? A) 7.74 percent B) 8.21 percent C) 9.68 percent D) 8.44 percent E) 7.49 percent 9) A stock has an expected rate of return of9.8 percent and a standard deviation of 15.4 percent. Whicl lowing best describes the probability that this stock will lose at least half of its value in any one g ear? (tip: return will be -50 percent). ) less than 16 percent ) less than.5 percent less than 1.0 percent less than 2.5 percent less than 5.0 percent annual returns of 11.3 percent, 9.8 percent, -7.3 percent, and 14.6 percent for the past on this information, what is the 95 percent probability range of returns for any one A stock had ycars, Based on this information, what is the 95 percent probablity range of returns for any one n year? 2.4 to 17.5 percent 2.60 to 11.80 percent 2.5 to 26.7 percent 0.4 to 12.3 percent percent