Nstep1466 Nstep1466 19-03-2024 Mathematics contestada Calculate the ex post standard deviation of returns for the following: 51 percent, 31 percent, 33 percent, 36 percent, 56 percent. (Round intermediate calculations to 4 decimal places)a. 0.1122b. 0.1145c. 0.1157d. 0.1179