Bar charts

A bar graph or bar chart displays data represented as a series of bars. The graph has an x axis (horizontal) and a y axis (vertical).

The height of each bar shows the frequency or amount of that item. The bars on the chart often go vertically, however some graphs show horizontal bars.

bar chartOn the graph shown here, four different ways of sealing a pipe that contains a liquid have been tested. The amount of liquid that leaked out was measured. The leaks had to be collected over the same time to make it fair!

 

Let's see how you make a bar chart