Question

Suppose you are writing a report on the population of the United States. In the report, you want to show the percentage of each state's population that was between the ages of 18 and 25 in 2010. Which visual aid would most clearly support your purpose?
A. Map
B. Line graph
C. Pie graph
D. Bar graph

Answer 1

The answer is:

D. Bar graph

In a bar graph you can put in the Y axis the percentage from 0 to 100 and you just put the states in the X axis, this way you can make a visual representation of the differences on the populations ages in the different states of the United States.

Answer 2

The correct answer is: Option D. Bar graph.

By presenting the age intervals (based on percentages) in the shape of bars, anyone could easily compare these elements jusy by analyzing the altitude of the bars. With this method, highlighting both the most prominent age set (highest value) and the most lacking one (lowest value) is a simple task.