This key facts covers Key Facts within Tree Diagrams for GCSE Mathematics. Revise Tree Diagrams in Probability for GCSE Mathematics with 15 exam-style questions and 20 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 2 of 6 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 2 of 6
Practice
15 questions
Recall
20 flashcards
Key Facts
- Tree Diagram: A visual representation of all possible outcomes in multi-stage events
- Each branch represents a possible outcome at each stage
- Probabilities on branches from the same point must add up to 1
- Multiplication Rule: Multiply probabilities along a path to find the probability of that specific sequence
- Addition Rule: Add probabilities of different paths that lead to the same final event
- Tree diagrams work for both independent and dependent events