Theoretical probability

problem

Succession in Randomia

Age

16 to 18

Challenge level

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?
problem

The Derren Brown Coin Flipping Scam

Age

16 to 18

Challenge level

Calculate probabilities associated with the Derren Brown coin scam in which he flipped 10 heads in a row.
problem

Magic Bag

Age

16 to 18

Challenge level

A weekly challenge concerning combinatorical probability.
article
What Is a Random Variable, Really?

This article offers an advanced perspective on random variables for the interested reader.
article
The Random World

Think that a coin toss is 50-50 heads or tails? Read on to appreciate the ever-changing and random nature of the world in which we live.
article
Taking Chances Extended

This article, for students and teachers, is mainly about probability, the mathematical way of looking at random chance.
article
A Probability Conundrum

What do we mean by probability? This simple problem may challenge your ideas...
article
Playing Squash

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.