19. The number of stories of the world's 30 tallest buildings follows. 70 82 114 82 96 76 102 78 105 62 88 80 102 110 68 80 88 64 BL 80 60 64 90 74 105 68 78 70 64 72 a) Construct a frequency distribution using 6 classes. Include class limits, midpoints, boundaries, frequencies and cumulative frequencies. b) Display the data using a relative frequency histogram and relative frequency polygon on the same axes c) Describe the shape of the distribution as symmetric, uniform, skewed left, skewed right, or none of these. d) Comment on the distribution of the data, note any significant observations. 20. In Pennsylvania the number of teachers strikes for the last 14 years are shown. Construct a dot-plot for the data. Comment on the distribution of the graph. 9 13 15 7 7 14 9 10 14 18 8 8 321. Construct a Pareto chart for the sizes of Gulf coastlines in statute miles for each state. State Coastline Alabama 150 Florida 750 Louisiana 500 Mississippi 200 Texas 400 22. The weights of 24 members of the varsity football team are listed below. Create a Stem and Leaf plot and comment on the type of distribution you observe. What can we observations can we make of this population? mm m m 23. The math and reading achievement from the National Assessment of Educational Progress for selected states are listed below. Construct a back-to-back Stem and Leaf plot with the data, and compare and comment on the distributions. Provide a few features on each. Math Reading 52.66 69 62 61 65 76 76 66 67 63.5.7. 59 59 55 71 70 70 66 61 4 72 73 61 69 78 76 77 3 77 77 80