This example produces a donut chart that is similar to the pie chart in Specifying the Sum Statistic for a Pie Chart in that each slice represents total sales for a site and each slice is a different ...

A quarter is one of four equal parts, so if you multiply a quarter of the pie chart by 4, you can find out what the whole is. So: In this example, there are two pie charts. When you have two pie ...

A line graph might be useful for showing the pattern of change in world population, for example. The line graph below shows the population growth of low income ... The pie chart below shows ...