Learn about semivariance, a key metric for assessing a portfolio’s downside risk. Understand its formula and how to calculate potential negative variations below the mean.

The T-Value is a common statistical calculation with a very wide range of applications. In the business world, it can help in making educated financial predictions and projections. For example, a ...

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

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 ...