The extent to which products meet specifications needs to be systematically monitored in a production process. Product quality will typically be defined by two quantities: deviations from stated ...

Using Microsoft Excel you can create charts based on the data and formulas entered in a worksheet. Enter a sample range of numbers in Excel as if you were at an event asking people their ages, for ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Somer G. Anderson is CPA, doctor of ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Gordon Scott has been an active investor and technical analyst or 20+ years. He is a Chartered Market Technician ...

An asset's standard deviation tells you how much its returns vary from its average. You can quickly calculate or look up the standard deviation of different assets. A high standard deviation can ...

You're currently following this author! Want to unfollow? Unsubscribe via the link in your email. Standard deviation is a concept that's thrown around frequently in finance. So what is it? When ...

In response to my article, Is the Stock Market Too Concentrated?, which relied upon standard-deviation calculations to assess investment risk, a reader wrote: “My problem [with your argument] is ...