Please help me with this problem I been stuck in this problem for 45 min and don't know how to go about it ????

7. The list {2, -3, 4, 5, 5, 11, 18, 22} has both the average and the SD of approximately 8. Without computing the average or SD explicitly, use this information to determine the average and standard deviation for the following lists: (a) {8, -12, 16, 20, 20, 44, 72, 88} (b) {-18, 27, -36, -45, -45, -99, -162, -198} You must provide an explanation to justify your answer. Area Height percent) (percent) A NORMAL TABLE Area Height Area Height Area Height 0.00 39.89 12.95 86.64 3,00 0.443 99.730 1.50 0.05 39.84 3.99 1.55 12.00 87.89 3.05 0.381 99.771 7.97 11.09 89.04 3.10 0.327 99.806 0.10 39.69 1.60 11.92 1.65 10.23 90.1 99.837 0.15 39.45 3.15 0.279 0.238 99.863 0.20 39.10 1 15.85 170 9.40 91.09 3.20 38.67 0.203 99.885 0.25 19.74 1.75 8.63 91.99 3.25 0.30 38.14 23.58 1.80 7.90 92.81 3.30 0.172 99.903 0.35 37.52 27.37 1.85 7.21 93.57 3.35 0.146 99.919 0.40 36.83 31.08 1.90 6.56 14.20 3.40 0.123 09.933 0.45 36.05 34.73 L.95 5.96 94 88 3.45 0 104 99.944 0.087 99.953 0.50 35.21 38.29 2.00 5.40 95.45 3.50 0.55 34.29 41.77 2.05 4.88 95.96 3.55 0.073 99.961 0.60 33.32 45.15 2.10 4.40 96.43 3.60 0.061 99.968 0.65 32.30 48.43 2.15 3.96 96.84 3.65 0.OST 99 974 0.042 99.978 0.70 31.23 51.61 2.20 3.55 97.22 3.70 0.75 30.11 54.67 2.25 3.17 97.56 3.75 0.035 99.982 0.80 28.97 57.63 2.30 2.83 97.86 3.80 0.029 99.986 0.85 27.80 60.47 2.35 2.52 98.12 3.85 0.024 99.988 0.90 26.61 63.19 2.40 2.24 18.36 3.90 0.020 99.990 0.95 25.41 2.45 1 98 98.57 3.95 0.016 99.992 1.00 24.20 68.27 2.50 98.76 4.00 0.013 99.9937 1.05 22.99 70.63 2.55 1.54 98.92 4.05 0.011 99.9949 1.10 21.79 72.87 2.60 1.36 99.07 4.10 0.009 99.9959 1.15 20.59 74.99 2.65 1.19 19.24 4.15 0.007 99.9967 1.20 19.42 76.99 2.70 1.04 90 3 1.20 0.006 99.9973 1.25 18.26 78.87 2.75 0.91 99.40 1.25 0.005 99.9979 1.30 17.14 80.64 2.80 0.79 99.49 4.30 0.004 99.9983 1.35 16.04 82.30 2.85 9.69 99.56 4.35 0.003 99.9986 1.40 14.97 83.85 2.90 0.60 19.63 4.40 0.002 99.9989 1.45 13.94 85.29 2.95 0.51 99.68 4.45 0.002 99.9991