Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

What do Icelandic volcanic ashes have in common with an innocent Brazilian man wrongly shot to death in a subway station by the London Metropolitan Police because they misidentified him as one of the ...

I regularly teach courses in statistics. And make no mistake about it, I LOVE teaching statistics. I’ve taught this class since 1996, have (with Sara Hall) co-authored a textbook on the topic, and I’d ...

Statistical testing in Python offers a way to make sure your data is meaningful. It only takes a second to validate your data ...

Control chart- a time-ordered plot of sample statistics, used to distinguish between random and nonrandom variability Control limits- the dividing lines between random and nonrandom deviations from ...

Considerable prior statistical work has criticized replacing a continuously measured variable in a general linear model with a dichotomy based on a median split of that variable. Iacobucci, Posovac, ...

In single-arm trials, false-positive error rates (type I error) were 2 to 4 times those projected when modest drift or patient selection effects (eg, 5% absolute ...