A graph showing the difference in frequencies or percentages among the categories of a nominal or an ordinal variable where the categories are displayed as rectangles of equal width with their height proportional to the frequency or percentage of the category is referred to as a
A)bar graph.
B)pie chart.
C)frequency polygon.
D)histogram.

Question

Quizplus · Accepted Answer

A bar graph is the best choice for displaying the difference in frequencies or percentages among categories of a nominal or an ordinal variable, as it allows for easy comparison between categories through the use of rectangular bars. Pie charts are more appropriate for displaying the proportion of each category in relation to the whole, while frequency polygons and histograms are better suited for displaying numerical data with continuous intervals.

A Graph Showing the Difference in Frequencies or Percentages Among