Key learning points

1. The mean, median and mode are measures of central tendency.
2. The range is a measure of the spread of the data.
3. Calculating these from a frequency table may be easier when there is a larger set of data.

Keywords

• A statistical summary - sums up the features of a data set. It may contain the average (mean, median and/or mode) which measure the central tendency. It may also contain the range which measures the spread.

Common misconception