Different games have different ways of scoring. For example, in table tennis it is the first to eleven or more points by a margin of at least 2 points. Until quite recently it was best to 21 or more points by a margin of at least 2 points. In some other games, like squash and volley ball you can only score a point if you win a point on your own serve. And in other games, like tennis, the scoring system involves a sequence of games and sets that must be won in order to win the overall match.

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More information: the case of Sally Clark, the case of Lucia de Berk (WikipediaBad Science website), children with the same birthday (Plus website, Understanding Uncertainty website

This presentation is best shown full-screen.

This presentation is best shown full-screen.

Football has a simple scoring system, but other games are not so simple. Games like tennis, badminton, squash, volleyball have quite complicated scoring systems. In some games, like badminton and volleyball, you can only win points on your own serve. Games like tennis and table-tennis require you to win the best of 3 or 5 sets/games.

Every day, we make decisions based on our assessment of the risks involved in situations we encounter and the probability which we think applies to those risks. But how realistic are these judgements?

In this conference, students will use mathematics to help them think more clearly about the risks that we face, and which we hear about in the media. They will deconstruct newspaper reports covering stories such as the risks of vaccination, new wonder drugs, lucky lottery winners, the rate of teenage pregnancies, and so on.

Project Work

# Why do unlikely things happen so often?

More about uncertainty and the Premier League ...

# Why do unlikely things happen so often?

## Tossing coins

• If you throw a head, are you more likely to get a tail next go?