Consider the piecewise defined function and make observations about the graph. Part A: over what intervals is the function increasing?

Part B: over what intervals is the function decreasing?

Part C: what is the domain of the nonlinear piece

Part D: what is the domain of the linear function

Part E: what is the range of the function

Part F: does the graph represent a function.. Explain how you know

Part G: is this piecewise function continuous

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.