For a table where the data has been grouped into equal class widths, the frequency density is proportional to the frequency. The frequency is often used for the height of the bars, and the graph is ...

Paired activity. Suitable for KS4. This activity attempts to get students to think about frequency density and how it is used in the construction of a histogram. The is a distinctly 'puzzle' feel to ...

A histogram is a type of chart that shows the frequency distribution of data points across a continuous range of numerical values. The values are grouped into bin or buckets that are arranged in ...