A cumulative frequency diagram is drawn by plotting the upper class boundary with the cumulative frequency. The upper class boundaries for this table are 35, 40, 45, 50 and 55. Cumulative frequency is ...

The table below shows the lengths (in cm) of 32 cucumbers. To calculate the cumulative frequencies, we simply add the frequencies in turn as we go down the values in the table.

The words "statistics" and "data handling" might sound dry but it's an area of maths with an exciting range of skills at its core including investigating, gathering, presenting, and examining ...