If graphing one nominal independent variable and one scale dependent variable, use a:
A) scatterplot or line graph.
B) frequency polygon.
C) histogram.
D) bar graph.

Question

Quizplus · Accepted Answer

When graphing one nominal independent variable and one scale dependent variable, the best choice is a bar graph. A bar graph is used to display the frequencies of different categories of a nominal variable, and the height of each bar represents the frequency or the mean of the dependent variable for that category. A scatterplot or line graph are used when both variables are scale and can be used to show the relationship between them. A frequency polygon is used to display the distribution of a single variable, and a histogram is used to display the distribution of a scale variable.

If Graphing One Nominal Independent Variable and One Scale Dependent