This equation shows how the accuracy of kimberly's watch is related to how long it's been since she last set it. s = d + 13 the variable d represents the number of days passed since kimberly last set her watch, and the variable s represents how many seconds behind the watch is. how many days has it been since kimberly last set her watch if the watch is 19 seconds behind?

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.