When I corrected the bar graph to start at zero, the changes became almost invisible. In that case, first decide whether you ...

Looking at a bar graph, you might think, "B is about twice as much as A." However, when you read the numbers, A is 40 people ...

The classic horizontal bar chart is something we’re all familiar with. For many of us, it was the first ‘chart’ we learnt in school, usually alongside Venn diagrams and line graphs. That’s because bar ...