264 Part 4: The State of the World
So what does the bar graph for the four classes at County High School look like? You draw a bar
for each class, making sure that the bars are all the same width, and bringing each up to a point
on the scale that corresponds to the enrollment. You might want to label the bars with the actual
values they represent, especially if the scale is hard to read.Class Sizes at County High SchoolHow to Read It
When you begin to read a bar graph, look first at the words around the graph. Is there a title to
tell you what the graph is about? Are the scales labeled to tell you what they show and in what
units they’re measured? Then look at the actual bars. How high is each bar? You may need to
estimate the quantities, if exact values are not given. Be sure to read scales carefully.y
6005505004504003503000x
Freshman583Sophomore529Junior492Senior45176
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