To display the percent of residents at least 65 years old in each of the 50 states in 2011, a good choice of a graph would be a:
A) box score.
B) histogram.
C) line graph.
D) pie chart.
E) bar graph.

Question

Quizplus · Accepted Answer

A bar graph is the best choice because it is effective for comparing values across multiple categories (the 50 states in this case) and can easily display the percentage of residents over 65 for each state with a vertical bar. A pie chart is not a good choice because it is difficult to compare multiple categories, and a histogram is not ideal because it is intended for continuous data rather than discrete categories. A line graph is better for displaying trends over time rather than comparing categorical data. A box plot is best used for displaying distribution and outliers in a set of data.

To Display the Percent of Residents at Least 65 Years