The 2017 US Grand Prix played a pivotal role in the Driver Championship race between Lewis Hamilton and Sebastian Vettel. Lewis Hamilton took home the race win on the day winning by 10+ seconds…

“ To err is human” especially when you have to navigate the dark waters of data analysis. Here is a…

The world is a pretty complex place. ANOVAs and other univariate statistical models are super useful…until they’re not. Sometimes we have data or questions that are more complicated than our univariate friends can answer, sometimes we have…drumroll please…

One of the questions I get asked most frequently is: how many people in South Africa use the…

Well, you’ve proved me wrong! I expected the mean wouldn’t be affected, because it’s a linear combination of the two group means.

The changing number of sampling points really is paraxodical to human intuition (like most things in statistics).

What statistics are susceptible to Simpson’s Paradox? That’s an interesting question you raise, Matthijs Cox. I think you’re mistaken though: the arithmetic mean is definitely among them, just like the median. You can see that illustrated below with my example data: