Shared on Facebook and Instagram, posts include a bar graph showing “murder of blacks and whites in the US, 2013” broken down by the races of the perpetrators. While the graph itself is accurate, the ...

Graphs are pictorial representations of numbers. Therefore, at the least, we should expect that the representation of the numbers be proportional to the numbers themselves. Unfortunately, this is not ...

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 ...

Bar graphs are used to show sets of data in more specific categories. 32 students were asked which season was their favourite. The table shows the results. Construct a bar chart that represents these ...