a bar graph is unique because on bar graphs u haft to draw a line over and then draw a line up like other ones u don't haft to.
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A bar graph IS a chart.A bar graph IS a chart.A bar graph IS a chart.A bar graph IS a chart.
a bar graph is just a graph but a double bar graph compares 2 things!
no a double bar graph is better
The difference between a bar graph and a double bar graph is...... A bar graph displays one set of data, and a double bar graph compares two different sets of information/data.So should have a key.
Click on the 'Bar Graph' link below to see what a bar graph looks like.