Expected return and standard deviation can help you analyze investment portfolios. Learn their differences, uses, and ...

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 ...

Ulnar deviation, or ulnar drift, occurs when the joints in the wrist and hand shift so the fingers bend toward the ulna bone on the outside of the forearm. It can result from problems in the wrist or ...

Choosing a roster with Matt Schaub, Adrian Peterson, Jamal Lewis, and Chad Johnson might win you four or five weeks by a large margin, but you'll lose all the weeks those four put up single digits. In ...

— -- Q: Why is standard deviation used by some investors to measure risk? A: Measuring risk can be a pretty straight-forward exercise. When it comes to figuring the odds of an accident while ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Andy Smith is a Certified Financial Planner ...

A "deviation" in manufacturing is when manufacturing steps are changed in some way from the set guidelines. Production guidelines are very detailed based on supply contract specifications, product ...