Use the data to create a scatter plot. stretch distance (cm) weight (newtons) 2.0 1 3.5 2 4.0 2 4.5 3 5.5 5 6.0 6 7.5 8 9.0 9 weight vs. stretch distance point move undo redo reset stretch distance (cm) weight (n)

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.