21.7778
98 - 45 = 53
143
98 divided by 5 is 19.6
98
0.1122
0.0005
1.96
1.4
0.1137
14
42 divided by 2 is 21, and 98 divided by 2 is 49.
Mean = "average" = (sum of samples) / (number of samples)Mean = (1/9) x (98 + 98 + 98 + 45 + 84 + 84 + 52 + 45 + 37) = 641/9 = 71.222 (rounded, repeating)