Using the data from Jan 1, 2015 to Dec 31, 2019, estimate the standard deviation of the monthly returns of a portfolio consisting of one share of KO, one share of T. and one share of XOM. Enter your answer as a percent without the "%". Round your final answer to two decimals. Home Insert Draw Page Layout ormulas Data Review Viei Calibri (Body) 12 ' == v Paste BIU v v 10 INI IM IMI F11 x & fx D E F G H 1 Mo. US. T-Bill Annual YTM WN B 1 S&P500 2 Adj. Close 3 2/1/14 2058.90 4 1/1/15 1994.99 5 2/1/15 2104.50 6 3/1/15 2067.89 7 4/1/15 2085.51 8 5/1/15 2107.39 9 6/1/15 2063.11 10 7/1/15 2103.84 11 B/1/15 1972.18 12 9/1/15 1920.03 13 0/1/15 2079.36 14 1/1/15 2080.41 15 2/1/15 2043.94 16 1/1/16 1940.24 17 2/1/16 1932.23 18 3/1/16 2059.74 19 4/1/16 2065.30 20 5/1/16 2096.95 21 6/1/16 2098.86 22 7/1/16 2173.60 23 B/1/16 2170.95 24 9/1/16 2168.27 25 D/1/16 2126.15 26 1/1/16 2198.81 27 2/1/16 2238.83 28 1/1/17 2278.87 29 2/1/17 2363.64 30 3/1/17 2362.72 31 4/1/17 2384.20 32 5/1/17 2411.80 33 6/1/17 2423.41 34 7/1/17 2470:30 35 B/1/17 2471.65 36 9/1/17 2519.36 37 0/1/17 2575 26 38 1/1/17 2584.84 39 2/1/17 2673,61 40 1/1/18 2823.81 0.02% 0.02% 0.02% 0.02% 0.01% 0.01% 0.03% 0.04% 0.01% 0.01% 0.07% 0.17% 0.23% 0.26% 0.25% 0.19% 0.23% 0.22% 0.26% 0.26% 0.19% 0.24% 0.30% 0.42% 0.50% 0.48% 0.66% 0.75% 0.73% 0.84% 0.97% 0.98% 0.99% 1.00N 1.09% 1.20% 1.30% KO KOTYON SEP Till F11 x & fic E m F G 37 38 39 40 41 42 43 44 45 8 9 46 47 48 49 50 51 52 53 54 55 56 57 58 A 10/1/17 11/1/17 12/1/17 1/1/18 2/1/18 3/1/18 4/1/18 5/1/18 6/1/18 7/1/18 8/1/18 9/1/18 10/1/18 11/1/18 12/1/18 1/1/19 2/1/19 3/1/19 4/1/19 5/1/19 6/1/19 7/1/19 8/1/19 9/1/19 10/1/19 11/1/19 12/1/19 B UDDU 2575.26 2584.84 2673.61 2823.81 2713.83 2640.87 2648.05 2705.27 2718.37 2816.29 2901.52 2913.98 2711.74 2760.17 2506.85 2704.10 2784.49 2834.40 2945.83 2752.06 2941.76 2980.38 2926.46 2976.74 3037.56 3140.98 3230.78 D V.270 1.00% 1.09% 1.20% 1.30% 1.38% 1.64% 1.66% 1.71% 1.81% 1.89% 1.94% 2.04% 2.17% 2.24% 2.37% 2.40% 2.43% 2.45% 2.43% 2.40% 2.22% 2.15% 2.07% 1.99% 1.73% 1.58% 1.55% 59 60 61 62 63 64 65 66 67 68 69 70 +