Once you have collected your data, the next step is to tabulate and display your data graphically. The data table below summarizes the responses of high school students to the following survey questions:

Survey:
1. Is conserving energy at school or in your home an important issue to you personally?
Yes
No

2. What is your approximate grade point average?
3.5 to 4.0
3.0 to 3.4
2.5 to 2.9
2.0 to 2.4
Below 2.0

Responses:
GPA Question 1 (Yes) Question 1 (No)
3.5 to 4.0 62 8
3.0 to 3.4 34 18
2.5 to 2.9 23 21
2.0 to 2.4 8 6
Below 2.0 4 4

In order to determine which graph to display the above data, you need to think about what you are trying to show:
Make Comparisons: Bar graph
Stacked bar graph
Pie Chart
Stem & leaf graph
Show Change: Line graph
Show Association or Correlation Scatter graph
Show Relationship: x/y line graph
best fit graph
Show Central Tendency: Box & whisker graph
Normal Curve graph
Show Range: Box & whisker graph
Stem & leaf graph
Show Outliers: Box & whisker graph
Stem & leaf graph
Show Frequency Distribution: Bar graph
Stacked bar graph
Stem & leaf graph

Since the purpose of the above study attempts to determine if differences exist between the attitude of high school students toward energy conservation and their corresponding grade point averages, a bar graph would be an appropriate graph to display because it compares the "Yes" and "No" responses of the students by grade point average categories (see bar graph below).


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