This is a simple pie chart disguised by visual clutter, which is meant to test a student's skill in cutting through extraneous information and determining the purpose of the pie chart. So, if we apply ...

Supplement color-coding of graphs and charts with simple patterns to improve accessibility for colorblind users. Charts should be readable in black and white. For more information on these and other ...

A pie chart can show collected data in sectors. Each sector can be labelled, or can be colour coded with a key. When drawing a pie chart, a protractor will be used to draw the angles accurately.