If the standard deviation is 20.98%. The range you should expect to see with a 95 percent probability is: -31.02 percent to +52.9 percent.
Expected range of return = 10.94 percent ± 2(20.98 percent)
Expected range of return =[10.94 percent- 2(20.98 percent)]; [10.94 percent + 2(20.98 percent)]
Expected range of return =(10.94 percent- 41.96 percent); (10.94 percent + 41.96 percent
Expected range of return = -31.02 percent to +52.9 percent
Inconclusion the range of returns is: -31.02 percent to +52.9 percent.
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