The sum of the probabilities of all outcomes is 1. Independent events are those not affected by a previous event. The probability of two independent events both happening is 𝑃(A and B) = 𝑃(A) × 𝑃(B ...

This worksheet can be used by students who have just been taught how to draw and complete a Probability tree diagram. I have a PowerPoint containing worked examples, which I use with this worksheet.

👉 Learn how to find the conditional probability of an event. Probability is the chance of an event occurring or not occurring. The probability of an event is given by the number of outcomes divided ...

For any event that has multiple outcomes with different probabilities, it can be helpful and illustrative to construct a chart or diagram of the possible outcomes. Tree diagrams are a useful example ...

A cram school teacher who taught students to 'draw a diagram' using line segments gets stuck obsessing over diagrams while relearning probability—what remained was a 'half-diagram' with three lines of ...

Try these interactive flashcards based on GCSE maths past papers. By working your way through the flashcards created by experts, you can prepare for your maths exams and revise commonly used ...