Looking carefully at these bar graphs we realise they don't tell us much at all. They show something going upward but we can't tell anything else: Even though this piece of data looks more useful, we ...

Scatter graphs are used to represent and compare two sets of data. By looking at a scatter graph, we can see whether there is any connection (correlation) between the two sets of data. Matt sells ...

Mathematics at A-level is going from strength to strength. Maths is the most popular subject choice, and further maths, which is a separate A-level course, has seen the most growth in uptake. Despite ...