Content about “
bayes theorem

Article
coin

Heads, Bayes wins!

If you've flipped heads 10 times what's the next flip most likely to be?  Bayes' theorem has the answer, not just for the coin, but for the pursuit of science generally.

Article

Mathematical snapshots: Kweku Abraham

As part of our series of interviews with early career researchers, Kweku tells us why he enjoys statistics, life as an early career researcher, and about a favourite mathematical moment.
Collection

Mathematics and justice

This collection of articles looks at mathematics relevant to law and justice.

Referenced articles
Article

Understanding uncertainty: ESP and Bayes

In the previous article we looked at a psychological study which claims to provide evidence that certain types of extra-sensory perception exist, using a statistical method called significance testing. But do the results of the study really justify this conclusion?
Article

The logic of drug testing

London 2012 vowed to be the cleanest Olympics ever, with more than 6,000 tests on athletes for performance enhancing drugs. But when an athlete does fail a drug test can we really conclude that they are cheating? John Haigh does the maths.
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Understanding uncertainty: how psychic was Paul?

England's performance in the World Cup last summer was thankfully overshadowed by the attention given to Paul the octopus, who was reported as making an unbroken series of correct predictions of match winners. David Spiegelhalter looks at Paul's performance in an attempt to answer the question that (briefly) gripped the world: was Paul psychic?

Article
scales of justice

It's a match!

"It's a match!" cries the CSI. At first glance it might seem that if the police have matched a suspect's DNA to evidence from the crime scene, then the case is closed. But some statistical thinking is required to understand exactly what a match is, and importantly, how juries should assess this as part of the evidence in a trial.

News story
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Survival odds: are all soldiers equal?

Being killed in a peacekeeping mission apparently depends on your nationality, at least if you're a soldier in the Spanish army. On the 1st of February 2010 the Colombian soldier John Felipe Romero serving in the Spanish army was killed in a terrorist attack in Afghanistan. It was then made public that so far 43% of the Spanish troops killed in attacks by local forces in Afghanistan and Lebanon have been foreigners. This is in striking contrast to the fact that foreign nationals make up only 7% of the Spanish army as a whole.