The index has been consistently above its trend for nearly three decades, with one brief exception during the 2008-2009 ...

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 ...

Ryan Eichler holds a B.S.B.A with a concentration in Finance from Boston University. He has held positions in, and has deep experience with, expense auditing, personal finance, real estate, as well as ...

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

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 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.

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

For a given data set, standard deviation measures how spread out the numbers are from an average value. This measurement of ...

In National 5 Lifeskills Maths standard deviation is a measure of consistency or spread of data. It is used as a comparison between different data sets.

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 Some details may be outdated.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 ...