C expression, we can use the sum function in python. For e, the command.
sum(x**2 for x in range (1,101))
e sum of the squares of the first hundred natural numbers.
1) Find the sum of the first 25 terms of each of the arithmetic sequenc
below.
1) 11, 22, 33, ii) 12, 23, 34, iii) 21, 32, 43,
iv) 19, 28, 37, .. v) 1, 6, 11,​

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.