We encounter regression to the mean almost every day, but almost nobody understands it. From sporting prowess to investment success, and jobseeking to KPIs, it crops up pretty much whenever we see an ...

In Week 11, I explained the difference between anticipated regression and the so-called "Gambler's fallacy", and in Week 12, I talked about retrodiction, or "predicting" the past as a means of testing ...

Matt Cassel was terrific in the red zone in 2011. But will that continue this season? Jamie Squire/Getty Images NOT TO GET too cosmic on you, but there is an unwritten law that governs the sports we ...

Regression models predict outcomes like housing prices from various inputs. Machine learning enhances regression by analyzing large, complex datasets. Different regression types address varied data ...

What if I told you that Adrian Peterson isn’t as good as his stats say? My reasoning is the Curse of the Leading Rusher. You’ve never heard of it before, but it’s an obvious trend. Since 1980, the NFL ...

Regression to the mean has the potential to fool everyone, even NBA coaches building systems of positive and negative reinforcement. These are challenging times, but one thing I’ve enjoyed about ...

High stock prices, low interest rates and non-existent volatility have lulled investors into a false sense of security. Avoid the temptation to extrapolate events of the immediate past into the ...

Peter Keating is a senior writer at ESPN The Magazine, where he covers investigative and statistical subjects. His column, The Numbers, appears in every issue. Matt Cassel was terrific in the red zone ...

ANNANDALE, Va. (MarketWatch) -- Berkshire Hathaway's annual meeting this past weekend brought to mind a comment made by Dow Theory Letters' editor Richard Russell. "Over a short span, the markets can ...