Learn why the geometric mean is preferred for portfolio returns and how it offers deeper insights into financial performance that the arithmetic mean.

A trimmed mean is much like a standard mean, which you can derive in Excel using the AVERAGE function. However, instead of using all of the data points to create the mean, a trimmed mean will leave ...

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 ...

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 ...