7 You are composing a two-stock portfolio consisting of 20 percent Stock A and 80 percent Stock B. Given the following information, find the standard deviation of this portfolio COVAB Company Beta Expected Return Standard Deviation Covariance A 1.5 28% 50% = 0.06 B 2.2 12% 40% Round to the nearset hundredth percent. Answer in the percent format. Do not include % sign in your answer i.e. If your answer is 4.33%, type 4.33 without a % sign at the end.)