1) Kyle went to the state fair and rode the Ferris wheel. The graph represents the last 40 seconds of Kyle's Ferris wheel ride. On which interval is the function increasing? A) 44 to 48 seconds B) 48 to 52 seconds Eliminate C) 52 to 56 seconds D) 70 to 72 sec
2. On which interval is the function decreasing? A) 40 to 44 seconds B) 56 to 60 seconds Eliminate C) 64 to 66 seconds D) 72 to 76 seconds

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.