Unit 8 - Tree Diagrams

Unit Objectives
​Prior Knowledge/For Review – Students should be able to:
  • Use the language of probability and the probability scale
  • Calculate the probability of an event
  • Know that P(A’) = 1 – P(A)
  • Use addition law for mutually exclusive outcomes in context
  • Calculate relative frequency and expectation
  • Use sample space diagrams and list for outcomes of more than one event
 IGCSE Core Learning Objectives – Students should be able to:
  • Use tree diagrams to calculate probabilities,  including successive selection with or without replacement (Video 8.01)
  • Calculate probabilities from Venn diagrams and tables (Video 8.02)
Lesson Resources​
0. Tree Diagrams Work Booklet
1. Drawing Simple Tree Diagrams
2. Drawing Tree Diagrams Without Replacement
3. Drawing More Advanced Tree Diagrams
4. Finding Probabilities From Tree Diagrams
5. Finding Probabilities From Venn Diagrams
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