Bayes' theorem is a formula for calculating the probability of an event. Learn how to calculate Bayes' theorem and see examples.

Show answer Tree diagrams Tree diagrams are a visual way of showing all possible outcomes of two or more events. Each branch is a possible outcome and is labelled with a probability.

What is Bayes's theorem, and how can it be used to assign probabilities to questions such as the existence of God? What scientific value does it have?

How likely you think something is to happen depends on what you already believe about the circumstances. That is the simple ...

Bayes' theorem in essence states that the probability of a given hypothesis depends both on the current data and prior knowledge.

In statistics, a frequentist interpretation looks only at the simple probability. But Bayes' theorem works with conditional information rather than just looking at a positive result, says Adam Frank.

This neatly describes how our brain works and is also the basis of a remarkable mathematical theorem called Bayes theorem, devised by Thomas Bayes, an obscure 19th-century English Presbyterian ...