Because the test result was positive, the doctor told the patient, "There is a 99% probability that you are infected." The ...

Engage your GCSE maths class with this completely interactive lesson with self-marking activities for learners taking the GCSE (1-9) course. In this lesson, learners will be able to calculate and ...

A comprehensive powerpoint that covers the topic of Probability: Conditional Probability Tree Diagrams. The Powerpoint models solutions to key questions in the topic, followed by questions for the ...

Author: Chris Boucher (March 2011). This app displays an intricate Venn diagram, containing various combinations of set intersections, unions and complements. Users can shade the area they choose by ...

Conditional probability describes how likely it is that an event (B) occurs under the condition that another event (A) has already occurred. For example: How probable is it that it will rain in an ...