When to use percent relative standard deviation-and how to do so correctly. Some tools are so useful and intuitive that they achieve widespread acceptance without recommendation. Percent relative ...

There are two formulae for standard deviation. \(s = \sqrt {\frac{{\sum {{{(X - \bar X)}^2}} }}{{n - 1}}}\) (where n is the sample size). The second formula is a re ...

Learn what active risk is and how to calculate it. Understand the methods to evaluate active risk in portfolios and explore examples of funds outperforming benchmarks.

Standard deviation is an important measure of spread or dispersion. It tells us how far, on average the results are from the mean. Therefore if the standard deviation is small, then this tells us that ...