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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 ...

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 ...

About the author: Rick Lear is the founder and chief investment officer at Lear Investment Management. The idea of adding to or maintaining fixed-income exposure at a time of heightened market fear ...

When you're trying to estimate the time between the beginning and the end of any project, the critical path follows the longest route. The standard deviation, on the other hand, uses the the most ...

While Excel is useful for many applications, it is an indispensable tool for those managing statistics. Two common terms used in statistics are Standard Deviation and ...

Standard deviation (SD) is still the most widely used measure of dispersion, or in financial markets, risk.That all sounds a bit technical but it's actually pretty straightforward to understand. It is ...