Compared to LG, Nokia and other cellphone makers Apple doesn’t sell that many devices. Compared to the same cellphone makers, though, Apple makes way more money. Apple’s got the right strategy: they ...

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.

Pie charts are a way to show data. Pie charts show proportions of a whole. The circle of the pie chart represents the whole. That's a full 360 degrees. Each part, or slice, represents part of the ...