Using the table below, calculate the population standard deviation of security C. Time B, % C, % A. % 18.56 1 18.23 12.82 N 2 5.82 15.27 18.24 - 14.12 -14.71 D.% Mkt, % 12.43 12.28 13.45 5.99 -4.32 12.41 -8.54 -4.48 12.21 13.41 3 4 -1.57 -6.56 -12.58 -9.36 12.45 5 13.16 9.12 6 21.22 6.34 17.54 8.12 14.32 11.46 O 131.34 08.03 74.37