# What is a double bar graph?

A double bar graph is a chart that uses parallel bars at proportional lengths that represent quantitative values. The length of the bar correlates with the data.

The bars on a double bar graph can be placed vertically or horizontally. Often, a bar graph has an axis that is labeled with categories and an axis labeled with numerical values. Bar graphs represent categorical data. For example, the labels can be countries, genders, age groups, races or time periods.

A double bar graph uses discrete values. The chart is made large enough to fit all of the data for each category.

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Q&A Related to "What is a double bar graph?"
 It is very similar to a bar graph, but it compares two variables under the same conditions multiple times. (Assuming that makes sense) Let's say you are creating a bargraph that has http://wiki.answers.com/Q/What_s_a_double_bar_grap...
 1. Draw the axes of your graph. Draw a horizontal line to represent the independent variable. Draw a vertical line on the far left side of the horizontal line to represent the dependent http://www.ehow.com/how_6110647_create-double-bar-...
 A double bar graph allows us to compare two or more pieces of http://www.chacha.com/question/what-is-the-definit...
 I just call it a bar chart. There are always variables in any kind of chart, but this one is fairly straightforward. I'm sure someone some where has a name for it. I always do it http://www.quora.com/Whats-the-name-of-this-kind-o...