A bar graph is used to compare items between different groups and track changes over a period of time. Bar graphs are best used for changes that happen over a large amount of time instead of just months or weeks. More »

Kids should use bar graphs when they are attempting to show how something changes over time or to compare items. Bar graphs work well when comparing items in categories that are related. More »

A compound bar graph breaks down data by splitting the columns to represent information comprising each bar. For example, a bar graph representing state employment rates can be turned into a compound bar graph by subdivi... More »

www.reference.com Math Data Graphs

Kids should use bar graphs when they are attempting to show how something changes over time or to compare items. Bar graphs work well when comparing items in categories that are related. More »

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. More »

www.reference.com Math Data Graphs

A horizontal bar graph is a visual representation of data that include a series of horizontal bars representing numerical amounts. Variations in the lengths of the bars allows for quick comparisons. More »

A segmented bar graph is similar to regular bar graph except the bars are made of different segments that are represented visually through colored sections. A segmented bar graph is sometimes known as a stacked bar graph... More »