Forecasting for any small business involves guesswork. You know your business and its past performance, but you may not be comfortable predicting the future. Using Excel is a great way to perform what ...

The mean ping time reveals the typical round-trip duration. Standard deviation indicates how much ping times vary from the mean. More pings may mean more accurate results, but the distribution of ping ...

The normal distribution is a concept in statistics that assumes all values are distributed in the same pattern. It requires symmetry and consistent proportions in the distribution of values. Normal ...

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 ...

Steven Nickolas is a writer and has 10+ years of experience working as a consultant to retail and institutional investors. Gordon Scott has been an active investor and technical analyst or 20+ years.

Andriy Blokhin has 5+ years of professional experience in public accounting, personal investing, and as a senior auditor with Ernst & Young. Eric's career includes extensive work in both public and ...