Donnie is considering two different dvd rental stores both of which have a one time membership fee and a fee per rented dvd. the cost for the renting dvds at the first store is shown
the cost for renting dvd’s at the second store is modeled by the linear function c=5+2d where d is the number of dvds rented and c is the cost.

compare the rates of change for each function and explain what this means in terms of context.

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.