M-PRO-012Foundation & HigherReview: PendingUse trees for dependent events without replacement
Probability · Combined events (T-PRO-005)
v1 mapping, pending teacher review. Only AQA and Edexcel are mapped so far. The first 3 pilot worksheets and their worked answers are available; remaining worksheets are coming soon. All videos are still coming soon.
- Retrieval
- Update numerator and denominator after a draw
- Fluency
- Two-stage and multi-stage dependent events
- Reasoning
- Explain when to add, multiply or update a probability.
- Application
- Compare sampling with and without replacement
- Common misconception
- Without replacement, later probabilities can change.
Video brief
Model how to use trees for dependent events without replacement. Explain each step; pause for a matching shadow question.
Planned video: V-PRO-012 · Video coming soon
Worksheets
Worksheets coming soon
Note: Dependent combined events are included at Foundation in P8; conditional probability as a separate given-event calculation is Higher P9.