Chris and Jo put two red and four blue ribbons in a box. They each pick a ribbon from the box without looking. Jo wins if the two ribbons are the same colour. Is the game fair?

These strange dice are rolled. What is the probability that the sum obtained is an odd number?

When two closely matched teams play each other, what is the most likely result?

What is the chance I will have a son who looks like me?

Predict future weather using the probability that tomorrow is wet given today is wet and the probability that tomorrow is wet given that today is dry.

If everyone in your class picked a number from 1 to 225, do you think any two people would pick the same number?

By tossing a coin one of three princes is chosen to be the next King of Randomia. Does each prince have an equal chance of taking the throne?

Which of these games would you play to give yourself the best possible chance of winning a prize?

Four cards are shuffled and placed into two piles of two. Starting with the first pile of cards - turn a card over... You win if all your cards end up in the trays before you run out of cards in. . . .

Can you work out which spinners were used to generate the frequency charts?

If the score is 8-8 do I have more chance of winning if the winner is the first to reach 9 points or the first to reach 10 points?

Playing squash involves lots of mathematics. This article explores the mathematics of a squash match and how a knowledge of probability could influence the choices you make.

This article explains how tree diagrams are constructed and helps you to understand how they can be used to calculate probabilities.

Simple models which help us to investigate how epidemics grow and die out.