why is the answer in the solution not put the standard deviation in decimal form. meaning, why are they putting 22^2 instead of 0.22^2?

how many Beta Firm-Specific Standard Deviation 6. The following are estimates for two stocks. Stock Expected Return 13% 0.8 30% 1.2 18 40 B The market index has a standard deviation of 22% and the risk-free rate is 8%. a. What are the standard deviations of stocks A and B? b. Suppose that we were to construct a portfolio with proportions: Stock A: .30 Stock B: .45 T-bills: 25 5. a. The standard deviation of each individual stock is given byn - 89 0; = [Bo +o(e)]2 SI-2:2192 moldos 2.Seldon Since Ba=0.8, BB = 1.2, (EA) = 30%, (EB) = 40%, and om = 22%, we get: 0A = (0.82 222 + 302)2 = 34.78% OB = (1.22 x 222 + 402)2 = 47.93% 0921312 31 LOD