Need to find Expected return:E(Rm) and the standard deviation of this list

1 S\&P 500 Closing Data 2 Date Adjusted Close Company = 3 12/1/2023 6872.15 Returns Risk Free Rate (Rt)= 1.550.50% 4 5 11/1/2023 6856.95 6738.48 6 10/1/2023 6620.62 7 9/12023 6317.43 8112023 70/2023 6134.12 6/1/2023 $933.45 5/1/2023 5833.76 4/1/2023 5856.35 5852.91 5887.34 5842.62 2/1/2023311/2023 5846.39 1/1/2023 5859.58 12/1/2022 5733.44 10/2022 5654Bt 9/2022 5466.15 5469.05 5467.57 541228 5330.55 5208.37 7/2023 523525 5058.64 491124 4866.27 4) 56.41 4572.01 4617.52 4716.43 471035 .471151 474606 6/12022 5/12022 42022 3/2022 2/12022 i1/2022 121/2021 1112021 10/12021 4795 os 4.4 0021 7112021 612021 5112021 4/12021 M12021