Seeing Theory

What Seeing Theory actually is

A Brown University project covering basic probability, distributions, inference, regression and Bayesian methods across six chapters, each built from animated visualisations you control. Sampling distributions are demonstrated by drawing thousands of samples in front of you.

Why it is worth your time

The central limit theorem chapter lets you pick an absurd population shape and watch the sample means fall into a bell curve anyway, which settles the idea for good.

Common questions

Is Seeing Theory free?

Yes. Seeing Theory is free and does not ask you to register or hand over an email address before you can use it.

How long does Seeing Theory take?

Five to fifteen minutes of proper attention. We file it under "Coffee break" — probability and statistics, entirely as moving pictures.

Does Seeing Theory work on a phone?

Seeing Theory really wants a mouse and a wide window. It will load on a phone, but the experience is built for desktop.

What kind of site is Seeing Theory?

We list it under Explain Everything — hard things, made suddenly obvious. The central limit theorem chapter lets you pick an absurd population shape and watch the sample means fall into a bell curve anyway, which settles the idea for good.