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Cambridge IGCSE Mathematics

8.3Probability of combined events

Probability of combined events in Cambridge IGCSE Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic40 practice questions2 lessons

Learning objectives

What the syllabus expects you to be able to do.

  1. 8.3.1Calculate probabilities of combined events using sample space diagrams, Venn diagrams and tree diagrams (Core: with replacement only, Venn diagrams with two sets).
  2. 8.3.2Extended: calculate probabilities of combined events without replacement.

Lessons

  • Combined events

    17 min

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  • Tree diagrams

    16 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Probability of combined events: sample question

1 mark

Two fair coins are tossed. What is the probability that both land heads?

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