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 »

To make a bar graph in Microsoft Excel, first open the appropriate spreadsheet, and select the data you want to represent. Ensure the data is in columns and that there are no blank cells. Also, name the column and row he... 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 »

Several types of graphs are used for displaying information in mathematics including the bar graph; pie chart or circle graph; histogram; stem and leaf plot; dot plot; scatter plot; and time-series graphs. The type of gr... More »

The main difference between a histogram and a bar graph is that a histogram displays quantitative data while a bar graph displays qualitative data. Quantitative data is numerical and can be measured by counting. Qualitat... 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 »