This document provides information on different types of graphs and displays that can be used to represent quantitative and qualitative data, including stem-and-leaf plots, dot plots, pie charts, Pareto charts, scatter plots, and time series charts. Examples are given for how to construct each type of graph or display using sample data sets. Key aspects like labeling axes, plotting data points, and interpreting trends are discussed.

1. Section 2.2 More Graphs and Displays Larson/Farber 4th ed.

3. Graphing Quantitative Data Sets Larson/Farber 4th ed. Data: 21, 25, 25, 26 , 27, 28, 30, 36, 36, 45 Example of a stem-and-leaf plot: Note: the leaf should always be a single digit. 26 2 1 5 5 6 7 8 3 0 6 6 4 5

6. Solution: Constructing a Stem-and-Leaf Plot Larson/Farber 4th ed. From the stem-and-leaf plot you can conclude that more than 50% of the RBI leaders had between 110 and 130 RBIs

8. Solution: Constructing a Stem-and-Leaf Plot From the display, you can conclude that most of the RBO leaders had between 105 and 135 RBIs

11. Graphing Quantitative Data Sets Data: 21, 25, 25, 26 , 27, 28, 30, 36, 36, 45 26 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 Example of a dot plot:

14. Solution: Constructing a Dot Plot From the dot plot, you can see that the most values cluster between 105 and 148 and 126 is the value that occurs the most.

18. Solution: Constructing a Pie Chart Larson/Farber 4th ed. From the pie chart, you can see that most fatalities in motor vehicle crashes were those involving the occupants of cars. Vehicle type Relative frequency Central angle Cars 0.49 176º Trucks 0.37 133º Motorcycles 0.12 43º Other 0.02 7º

19. Break

22. Solution: Constructing a Pareto Chart Larson/Farber 4th ed. From the graph, it is easy to see that the causes of inventory shrinkage that should be addressed first are employee theft and shoplifting. Cause $ (million) Admin. error 7.8 Employee theft 15.6 Shoplifting 14.7 Vendor fraud 2.9

28. Solution: Interpreting a Scatter Plot Larson/Farber 4th ed. Interpretation From the scatter plot, you can see that as the petal length increases, the petal width also tends to increase.

33. Solution: Constructing a Time Series Chart Larson/Farber 4th ed. The graph shows that the number of subscribers has been increasing since 1995, with greater increases recently.