The basic mathematical concepts of standard deviation and variance are useful to investors. Compare variance versus standard deviation and calculate each.

Learn how to calculate Value at Risk (VaR) to effectively assess financial risks in portfolios, using historical, variance-covariance, and Monte Carlo methods.

The standard deviation is calculated by finding the mean, calculating the variance and taking the square root of the variance.

The standard deviation is the square root of the variance. Unfortunately, according to mathematical theory, you can’t do arithmetic operations with standard deviations, although you can with ...