CAIE IGCSE Mathematics Core C8.3 Probability of Combined Events Question Bank

Practise two-stage probability with replacement using tree diagrams, complements and alternative outcome paths.

Syllabus
2028–2030
Topic
C8.3
Level
Core

Exam points

  • complete each tree split with branch probabilities that total 1
  • multiply probabilities along one path to find both specified outcomes
  • add mutually exclusive paths when either ordering gives the required event

Covered syllabus points

C8.3.1 Calculate the probability of combined events using, where appropriate:

C8.3 Probability of combined events question 1

[Maximum number: 2]

Hemang buys two televisions.

The probability that a television is faulty is 0.02 .

Figure for Question C8.3 Probability of combined events question 1 — CAIE IGCSE Mathematics Core

Find the probability that Hemang buys two faulty televisions.

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