I've calculated the historical average return to be 5%. Compute standard deviation. a. 8.66% b. 10.80% c. 13.23% d. 3.16% e. 7.07% f. 16.7% g. 17.5% Taking the perspective of an individual investor (that is you), rank the following investments starting with HIGHEST risk, and ending with LOWEST risk. a. Common stock, preferred stock, bonds b. Bonds, common stock, preferred stock c. Preferred stock, bonds, common stock