Flickr via Google Images 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 ...

When reviewing cash flow data for your small business, knowing the standard deviation can help you determine if the numbers are out of whack. Calculating standard deviation manually can be ...

Paid non-client promotion: Affiliate links for the products on this page are from partners that compensate us (see our advertiser disclosure with our list of partners for more details). However, our ...

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 ...

Standard deviation is a common statistical measurement and is defined by Oxford Dictionaries as: ‘A quantity expressing by how much the members of a group differ from the mean value for the group.’ In ...

Standard deviation is a metric that shows the variability of a security’s returns over time. It can be used to gauge volatility based on past performance and compare a future return to past returns.

What does standard deviation actually tell you about a stock? Barchart’s John Rowland explains how Bollinger Bands use ...

Steven Nickolas is a writer and has 10+ years of experience working as a consultant to retail and institutional investors. Gordon Scott has been an active investor and technical analyst for 20+ years.

In statistics, the standard deviation is a measure of the amount of variation or dispersion of a set of values. A low standard deviation indicates that the values tend to be close to the mean (also ...

Standard deviation is a measurement of market volatility. Learn how investors use standard deviation in the MoneySense Glossary. This article is 1 year old. Some details may be outdated. Standard ...