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(^7) Organizing and Displaying
Data
Chapter Outline
7.1 Line Graphs
7.2 BROKEN-LINEGRAPHS
7.3 SCATTERPLOTS
7.4 LINEARREGRESSIONEQUATIONS
7.5 PIECHARTS
7.6 STEM-AND-LEAFPLOTS
7.7 BARGRAPHS
7.8 Histograms
7.9 Applications of Histograms
7.10 FREQUENCYPOLYGONS
7.11 BOX-AND-WHISKERPLOTS
7.12 APPLICATIONS OFBOX-AND-WHISKERPLOTS
Introduction
The local arena is trying to attract as many participants as possible to attend the community’s “Skate for Scoliosis”
event. Participants pay a fee of $10.00 for registering, and, in addition, the arena will donate $3.00 for each hour a
participant skates, up to a maximum of 6 hours. Create a table of values and draw a graph to represent a participant
who skates for the entire 6 hours. How much money can a participant raise for the community if he/she skates for
the maximum length of time?
This problem will be revisited later in the chapter.
When data is collected from surveys or experiments, it is often displayed in charts, tables, or graphs in order to
produce a visual image that is helpful in interpreting the results. From a graph or table, an observer is able to detect
any patterns or trends that may exist. The most common graphs that are used in statistics are line graphs, scatter
plots, bar graphs, histograms, frequency polygons, circle graphs, and box-and-whisker plots.