Question 13 3 pts Asset A earns 7.2%, 3.4%, 0.7%, or 9.3% in states 1 through 4. Asset B earns 4.7%, 5%, 6.3%, or -4.5%. Asset A 7.2% 3.4% 0.7% 9.3% -4.5% Asset B 4.7% 5% 6.3% What is the standard deviation for a portfolio AB that invests 71% in A and (1-71%) in B