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a. What is the total cumulative dollar return on a $1,000 investment in HUM over the sample period?

[Round the answer to the nearest cent]

b. What is the annualized standard deviation of monthly returns for UNH over the sample period?

[Enter the answer in as a percent (e.g., 5.55% = 5.55) - not a decimal]

c. What is the annualized standard deviation of monthly returns for HUM over the sample period?

[Enter the answer in as a percent (e.g., 5.55% = 5.55) - not a decimal]

\begin{tabular}{|c|c|c|c|c|} \hline & \multicolumn{4}{|c|}{ Adj Closing Price } \\ \hline Date & risk-free (BIL)r & market (SPY) & UNH & HUM \\ \hline 2/1/2018 & 86.74 & 249.41 & 210.20 & 262.59 \\ \hline 3/1/2018 & 86.86 & 241.61 & 198.90 & 259.70 \\ \hline 4/1/2018 & 86.93 & 243.83 & 220.45 & 284.72 \\ \hline 5/1/2018 & 87.05 & 249.76 & 225.21 & 281.62 \\ \hline 6/1/2018 & 87.17 & 250.07 & 228.78 & 288.06 \\ \hline 7/1/2018 & 87.29 & 260.50 & 236.97 & 304.58 \\ \hline 8/1/2018 & 87.42 & 268.81 & 251.23 & 323.08 \\ \hline 9/1/2018 & 87.54 & 269.19 & 248.96 & 328.18 \\ \hline 10/1/2018 & 87.68 & 251.72 & 245.40 & 311.09 \\ \hline 11/1/2018 & 87.84 & 256.39 & 264.19 & 319.89 \\ \hline 12/1/2018 & 87.84 & 232.46 & 234.66 & 278.15 \\ \hline 1/1/2019 & 88.30 & 252.54 & 254.52 & 300.53 \\ \hline 2/1/2019 & 88.29 & 260.73 & 228.16 & 277.24 \\ \hline 3/1/2019 & 88.45 & 264.28 & 232.91 & 258.72 \\ \hline 4/1/2019 & 88.61 & 276.29 & 220.38 & 248.94 \\ \hline 5/1/2019 & 88.80 & 258.67 & 228.64 & 238.66 \\ \hline 6/1/2019 & 88.96 & 275.33 & 230.73 & 258.58 \\ \hline 7/1/2019 & 89.14 & 280.85 & 236.50 & 289.84 \\ \hline 8/1/2019 & 89.30 & 276.15 & 222.24 & 276.62 \\ \hline 9/1/2019 & 89.43 & 280.23 & 206.40 & 249.72 \\ \hline 10/1/2019 & 89.60 & 287.75 & 241.13 & 287.95 \\ \hline 11/1/2019 & 89.70 & 298.16 & 267.06 & 333.98 \\ \hline 12/1/2019 & 89.71 & 305.32 & 280.53 & 358.73 \\ \hline 1/1/2020 & 90.04 & 306.70 & 260.98 & 329.58 \\ \hline 2/1/2020 & 90.04 & 282.42 & 244.23 & 313.35 \\ \hline 3/1/2020 & 90.24 & 245.71 & 238.88 & 307.80 \\ \hline 4/1/2020 & 90.26 & 278.54 & 281.37 & 375.05 \\ \hline 5/1/2020 & 90.28 & 291.81 & 293.28 & 403.37 \\ \hline 6/1/2020 & 90.30 & 295.68 & 283.76 & 380.88 \\ \hline 7/1/2020 & 90.31 & 314.48 & 292.54 & 386.14 \\ \hline 8/1/2020 & 90.31 & 336.43 & 301.98 & 408.49 \\ \hline 9/1/2020 & 90.29 & 322.54 & 301.23 & 407.23 \\ \hline 10/1/2020 & 90.30 & 315.75 & 296.04 & 393.47 \\ \hline 11/1/2020 & 90.29 & 350.10 & 326.31 & 394.69 \\ \hline 12/1/2020 & 90.29 & 361.53 & 340.22 & 404.30 \\ \hline 1/1/2021 & 90.29 & 359.37 & 324.80 & 378.12 \\ \hline 2/1/2021 & 90.28 & 369.36 & 323.47 & 374.70 \\ \hline 3/1/2021 & 90.27 & 384.87 & 362.27 & 413.79 \\ \hline 4/1/2021 & 90.27 & 406.56 & 389.68 & 440.16 \\ \hline 5/1/2021 & 90.26 & 409.23 & 402.50 & 432.71 \\ \hline 6/1/2021 & 90.24 & 417.05 & 391.28 & 437.67 \\ \hline 7/1/2021 & 90.23 & 428.63 & 404.27 & 421.67 \\ \hline 8/1/2021 & 90.22 & 441.38 & 408.24 & 401.43 \\ \hline 9/1/2021 & 90.23 & 419.47 & 383.20 & 385.32 \\ \hline 10/1/2021 & 90.22 & 450.34 & 453.17 & 459.41 \\ \hline 11/1/2021 & 90.20 & 446.72 & 437.18 & 416.31 \\ \hline 12/1/2021 & 90.20 & 465.74 & 494.18 & 460.11 \\ \hline 1/1/2022 & 90.20 & 442.73 & 466.59 & 389.91 \\ \hline 2/1/2022 & 90.18 & 429.66 & 469.85 & 431.45 \\ \hline 3/1/2022 & 90.20 & 444.43 & 503.52 & 432.29 \\ \hline 4/1/2022 & 90.21 & 406.68 & 503.61 & 442.42 \\ \hline 5/1/2022 & 90.24 & 407.60 & 491.95 & 452.04 \\ \hline 6/1/2022 & 90.28 & 372.38 & 508.64 & 465.81 \\ \hline 7/1/2022 & 90.29 & 408.43 & 538.98 & 480.49 \\ \hline 8/1/2022 & 90.43 & 391.76 & 516.11 & 480.28 \\ \hline 9/1/2022 & 90.57 & 354.09 & 501.91 & 483.68 \\ \hline 10/1/2022 & 90.70 & 384.44 & 553.44 & 557.23 \\ \hline 11/1/2022 & 90.93 & 405.82 & 546.08 & 549.06 \\ \hline 12/1/2022 & 90.94 & 380.68 & 528.55 & 511.41 \\ \hline 1/1/2023 & 91.51 & 387.86 & 490.06 & 481. \\ \hline \end{tabular}

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