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A double bar graph is a bar graph with two bars that compare two sets of data. Don't get too overwhelmed by the name. They really are simple to figure out when you look at them.
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A bar graph is often used when one needs to compare two or more values that are taken under different conditions or over time; a bar graph is commonly used with a small data set.
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You can make a simple bar graph using Excel. Open Excel, drag the cursor over the columns to show in your chart, open the insert menu, and select chart. Now select the type of chart
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A bar graph is used to show a comparison between two or more sets of information. The information is represented on a x and y axis with bars representing the amont of the information
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