It's so ubiquitous it's normal!
Here's an introduction and some examples.
How long do you have to wait for more than one thing to happen?
They are incredibly useful, but what exactly are they?
How long do you have to wait for something to happen?
What's the chance that something happens?
Measuring your chance of success.
There are many ways of explaining technical ideas, and using a range of strategies can give the most intuitive understanding.
The probability distribution that measures success and failure.
The practice of overbooking has made uncomfortable headlines lately. But how do airlines decide how many tickets to sell for a flight? Here's the maths.