Standard deviation is a measurement of market volatility. Learn how investors use standard deviation in the MoneySense Glossary.

A control chart consists of several parts. It has two control limits and an average line. The bottom dashed line is called ...

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

Key Points NORMSINV is an Excel function used along with normal distributions. It allows you to conduct calculations faster ...

What is standard deviation? Standard deviation measure of the dispersion or spread of a set of values. It indicates how much individual data points deviate from the mean (average) of the >data set. It ...

Grasp risk management—find out how to annualize standard deviation and refine your investment strategies. Start stabilizing your portfolio now!

Calculating an investment's standard deviation can help you determine how much its price may rise or fall in the future. Find the formula here.

Standard Deviation: In Defense of an Often-Dismissed Investing Metric Debunking three arguments against this valuable risk-assessment tool.