Sampling data - Intermediate & Higher tier - WJEC Cumulative frequency – Intermediate & Higher tier - WJEC Averages and range - WJEC Discussing results - WJEC Mean, median and mode ...

When data is presented as a list of numbers, it can be difficult to interpret. If it is summarised in a diagram it is easier to draw conclusions and to compare with a different data set. A box plot is ...