The interquartile mean is a measure of central tendency. While all values in a data set are used to calculate the mean, only the interquartile range -- the central portion of a data set -- is used ...

Interquartile range - Higher The interquartile range shows the range in values of the central 50% of the data. The data is split into quarters and the middle 50% is analysed.

GCSE AQA Analysing data - AQA Range In statistics there are three types of average: the mean, the median and the mode. Measures of spread such as the range and the interquartile range can be used ...