Tree Diagrams & Combined Probability

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About Course

Use tree diagrams to find probabilities of combined events, apply the AND and OR rules, and handle conditional probability where the second event depends on the first.

This course is independent revision support and is not affiliated with any exam board. Always check your own exam board specification and past-paper guidance.

What Will You Learn?

  • Draw and label tree diagrams correctly Use the AND (multiply) and OR (add) rules Tell independent and dependent events apart Solve “without replacement” problems

Course Content

Course Lessons

  • Combined Events
  • Drawing Tree Diagrams
  • Dependent Events (Without Replacement)

Sources & Further Reading
The official guidance this course is based on.

Final Assessment

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