The T-Value is a common statistical calculation with a very wide range of applications. In the business world, it can help in making educated financial predictions and projections. For example, a ...

What if I say that starting a business is unnatural? The venture is always risky, and we’re so good at avoiding risks: Some say it's just the way our brains are wired. Fear of loss may be primal and ...

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 ...