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8-4
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BaseballFootballBasketballSwimming
Other
0
8
6
4
2
30%
Baseball
35%
Basketball
20%
Football
Swimming
10%
Other
5%
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Update your skills. See pages 415 XIX, 416 XX.
Choose an Appropriate Graph
Objective To select and use appropriate types of graphs to display data
Manuel surveyed his math class to find the favorite sport
of the 20 students in the class. The frequency table below
shows the data he collected. What type of graph would
be appropriate for Manuel to use in displaying the data?
Create a graph to display the data in the table.
To find an appropriate type of graph that Manuel could use to display
the data, consider various types of graphs and their purposes.
- Bar Graph:Uses the length or height of bars in relation to a scale
of equal intervals to comparetwo or more sets of data. - Line Graph:Uses the location of points to display changesthat
occur in a data set over time. Since the data do not show change
over time, a line graph would not be an appropriate way to display
the data in the table. - Circle Graph:Shows how a whole is divided into parts. The parts
must total 100%.
The data in the table do not show change over time, so a line graph is not
an appropriate way to display the data. The bar graph and the circle graph
are appropriate ways to display the data.
Favorite Sport
Sport Tally Frequency
Baseball 5 1 6
Football 4 4
Basketball 5 2 7
Swimming 1 1
Other 2 2