Averages are used all the time in finance, usually to justify performance (above average'). However, as an investor, youshould realise there are several ways to calculate an average.The three most ...

Understanding mean, median, mode and range is essential to be able to compare sets of data. Watch the video to hear Steph, a sports coach, talk about why collecting and comparing data is useful and ...

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 to ...