A bar graph is most commonly used a.
to compare quantities
b.
by government record keeping agencies.
c.
to show how a "whole" is divided into "parts."
d.
to compare amounts by using images to represent quantities.

the answer is a. to compare quantities

Explanation:

hope this helps

look at the picture below for proof

You not be doing this in a quiz. if you actually studied your work you would know the answer. the answer though is that they would use gdp per capita because it measures a smaller portion (person). this could show individual growth per person in the country.