Once raw data has been collected, you need to represent it in a diagram. Two ways of doing this are to use a pie chart or frequency diagram. In a survey, 100 school students were asked to name their ...

To display a record of information in a graphical interface, pie charts, bar diagrams, and other such chart diagrams are the best ways to present or communicate ...

To draw a pie chart, we need to represent each part of the data as a proportion of 360, because there are \(360^{\circ}\) in a circle. For example, if 55 out of 270 vehicles are vans, we will ...

Have you ever found yourself staring at a jumble of numbers, wishing they could magically transform into a clean, professional-looking chart? Whether you’re preparing for a big presentation, ...

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter. “There is no such thing as an innocent map,” observes Philippe Rekacewicz in his catalogue essay that ...