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Edexcel IGCSE Math A Higher 6.3.HA probability tree diagrams

Edexcel IGCSE Math A Higher 6.3.HA probability tree diagrams
Edexcel IGCSE Math A syllabusMath A 4MA1First assessment 2018

Practise tree-diagram questions by filling branch probabilities, following paths and combining probabilities for required outcomes.

How this is tested

  • Complete missing branch probabilities on a probability tree diagram accurately.
  • Multiply along branches to find the probability of a two-stage outcome.
  • Add relevant path probabilities when more than one route gives the required event.

Question 13(a)

[Maximum number: 2]

In a bag, there are only 2 yellow beads and 3 orange beads.
In a box, there are only 3 yellow beads and 5 green beads.

Chi takes at random a bead from the bag and a bead from the box.

Complete the probability tree diagram.

Figure for Question 13(a) — Edexcel IGCSE Math a Higher