What is a pert chart bbc bitesize
Charts and graphs provide a visual representation of data, which can often be easier to understand. To make a chart, use the chart wizard or the gallery, then follow the onscreen instructions Pie charts use different-sized sectors of a circle to represent data. In a pie chart it is important to understand that the angle of each sector represents the fraction, out of , assigned to that data value. Pie charts should always be labelled, either directly on the pie chart or by means of a colour-coded key.