This key facts covers Key Facts within Combined Events for GCSE Mathematics. Revise Combined Events in Probability for GCSE Mathematics with 11 exam-style questions and 2 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 2 of 5 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 5
Practice
11 questions
Recall
2 flashcards
Key Facts
- Independent Events: One event doesn't affect the other
- Dependent Events: One event affects the probability of the other
- Mutually Exclusive: Events cannot happen at the same time
- Addition Rule: P(A or B) = P(A) + P(B) - P(A and B)
- Multiplication Rule: P(A and B) = P(A) × P(B|A)
- For independent events: P(A and B) = P(A) × P(B)
Keep building this topic
Read this section alongside the surrounding pages in Combined Events. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Combined Events
A fair coin is flipped and a fair die is rolled. What rule is used to find P(heads AND rolling a 3)?
Explain the difference between independent and dependent events in probability. Give an example of each.
Quick Recall Flashcards
11 questions on Combined Events — practise free
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