Calculate the probability of combined events, which may include scenarios with or without replacement. This can be represented using sample space diagrams, Venn diagrams (where the notation P(A ∩ B) and P(A ∪ B) can be applied), and tree diagrams, where outcomes are indicated at the ends of branches and probabilities are noted alongside the branches.

Quick explanation

Calculate the probability of combined events, which may include scenarios with or without replacement. This can be represented using sample space diagrams, Venn diagrams (where the notation P(A ∩ B) and P(A ∪ B) can be applied), and tree diagrams, where outcomes are indicated at the ends of branches and probabilities are noted alongside the branches

• This point belongs to Probability of combined events, especially Probability of combined events outcomes.
• You need to be able to calculate the probability of combined events, which may include scenarios with or without replacement. This can be represented using sample space diagrams, Venn diagrams (where the notation P(A ∩ B) and P(A ∪ B) can be applied), and tree diagrams, where outcomes are indicated at the ends of branches and probabilities are noted alongside the branches.
• The key ideas to know are Calculate, Determine, and Show.
• Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.