Standard deviation is a concept that's thrown around frequently in finance. So what is it? When working with a quantitative data set, one of the first things we want to know is what the "typical ...

Save guides, add subjects and pick up where you left off with your BBC account. There are two formulae for standard deviation. \(s = \sqrt {\frac{{\sum {{{(X - \bar X ...

Annualized volatility is calculated as standard deviation times square root of periods ... define the riskiness of a stock, bond, or asset class. In addition, assumptions about volatility are ...

How They Differ and Practical Uses in Finance and Investing Henry Hoenig has three decades of journalism experience as a news and economics editor in the U.S. and Asia, handling coverage of global ...