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

Variance is a powerful statistic used in data analysis and machine learning. It is one of the four main measures of variability along with range, interquartile range (IQR) and standard deviation.

Learn the basics of calculating and interpreting standard deviation, and how it is used to measure and determine risk in the investment industry.

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