answer both please

Question 21 (2 points) If an investment in a stock generates a historical average return of 10.2%, what is the risk premium an investor implicitly demands for this investment? Over the same time period, large company stocks averaged 12.8%, small company stocks averaged 15.6%, long-term corporate bonds averaged 5.51%, and US Treasury Bills averaged 3.22% d) 6.98% e) 5.40% Oa) -2.58% Ob) 4.69% O c) 2.29% Question 22 (2 points) The standard deviation is the standard statistical measure of the a) spread of the sample Ob) degree of symmetry of the sample Oc) highest point of the sample d) degree of peakedness of the sample