Probability and Risk · Probability

Conditional Probability

Calculating the probability of an event occurring given that another event has already happened.

Key Questions

  1. 1How does knowing the outcome of one event change the probability of the next?
  2. 2Why is the 'without replacement' rule critical in dependent probability models?
  3. 3How can tree diagrams help us visualise complex conditional outcomes?

National Curriculum Attainment Targets

GCSE: Mathematics - Probability
Year: Year 11
Subject: Mathematics
Unit: Probability and Risk
Period: Probability

Suggested Methodologies

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