Malin and George kept track of their running times for the 100-yard dash. The dot plots below show their results.

Based on the data represented in the graphs, which statement appears to be true?

A The median running time for both sets of data is 13.

B The distribution for both sets of data is approximately symmetrical.

C The range of the running times for George is greater than the range of
the running times for Malin.

D The mode for both sets of data is equal.

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.