The graph shows the number of cycles of a crosswalk signal during the day and during the night. (a.) Compare the steepness of the lines. What does this mean in the context of the problem? (Greater or Less than)

(b.) Find and interpret the slope of each line.

(a.) The number of cycles during the day is
_
than the number of cycles during the night. (b.) The crosswalk cycles
_
times per hour during the day and
_
times per hour during the night.

Which of the following three dimensional figures has a circle as it’s base

Elizabeth is using a sample to study american alligators. she plots the lengths of their tails against their total lengths to find the relationship between the two attributes. which point is an outlier in this data set?

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.