A stock has returns of 8 percent, 12 percent, -22 percent, and 18 percent for the past 4 years. Based on this information, what is the 95 percent probability range for any one given year?
-31.6 to 21.8 percent
-31.6 to 39.6 percent
-67.3 to 75.3 percent
-13.8 to 21.8 percent
-15.8 to 19.8 percent