Discover the differences between standard deviation and variance, two essential metrics for investors to assess volatility and risk in financial data.

Variance is a measurement of the spread between numbers in a data set. Investors use the variance equation to evaluate a ...

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 ...

Somewhere back in your middle school and high school math classes, you no doubt learned about the mean and standard deviation as fairly fundamental concepts in arithmetic and statistics. You also knew ...

As a business owner, you are constantly figuring out what your current customers want and what your potential customer needs. The data can be tracked in a variety of ways, from polls and surveys to ...

Standard deviation, the most widely used measure in Canada to gauge the risk of an ETF or mutual fund, is only one way to crunch past performance numbers. Others drawn from the database of Fundata ...

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 ...