statistics you can probably trust

When doing linear modelling, we make certain assumptions about the data. One such assumption is uniform variance. The fancy word… Read more

Maximum likelihood is one of those topics in mathematical statistics that takes a while to wrap your head around. At… Read more

Power is the probability of rejecting a null hypothesis when the alternative is true. Say your null hypothesis is \(… Read more

qq-plot is short for quantile-by-quantile plot. You plot one quantile against another and you see if their coordinate pairs form… Read more

The Central Limit Theorem is really amazing if you think about it. It says that the sum of a large… Read more

I remember feeling very uncomfortable with the F distribution when I started learning statistics. It comes up when you’re learning… Read more

I used to tutor undergrad students in statistics when I was in grad school. One question that almost every student… Read more

The moment-generating function of the gamma distribution is \( M(t) = (1-\theta t)^{-\alpha}\). Such a friendly little guy. Not what… Read more

Let’s take a look at the gamma distribution: $$ f(x) = \frac{1}{\Gamma(\alpha)\theta^{\alpha}}x^{\alpha-1}e^{-x/\theta}$$ I don’t know about you, but I think… Read more

The exponential distribution has the quirky property of having no memory. Before we wade into the math and see why,… Read more