Angel is trying to find out the distribution of money earned each year by website builders so that he can make some predictions about the career. He wants to make a chart or graph to show the number of people who fall into each salary range: $30,000 to $40,000, $40,000 to $50,000, $50,000 to $60,000, and $60,000 to $70,000.

What type of chart or graph would be best for Angel to use?

a scatterplot
a histogram
a line graph
a bar graph