It is possible to read data and make comparisons using a bar chart. This type of graph, called a dual bar chart, shows the eye colour of year 7 and year 8 students. Image caption, Using the ...

The maximum stock level is the largest amount of stock a business can store on site. In the bar graph example, it is 500 items of stock. The minimum stock level is also known as buffer stock.

Excel offers many different chart types—including column and bar graphs—to present your data ... click "Insert," and choose the "2D Clustered Column" option. This produces a neat chart ...