ProbabilityHigh Exam FrequencyAQAEdexcelOCRWJEC

Venn Diagrams

Revise Venn Diagrams in Probability for GCSE Mathematics with 14 exam-style questions and 12 flashcards. This is a high-frequency exam topic, so students should expect to explain it clearly under timed conditions.

Sample Flashcards

What does A ∩ B mean?
The intersection - outcomes where BOTH event A AND event B occur. On the diagram it is the overlapping region between the two circles.
What does A ∪ B mean?
The union - outcomes where AT LEAST ONE of event A or event B occurs. Includes only A, only B, and A ∩ B. The ∪ symbol looks like a U for Union.

Sample Questions

In a Venn diagram with two events A and B, which symbol represents the region where BOTH events occur at the same time?

  • A. A ∩ B
  • B. A ∪ B
  • C. A'
  • D. U
1 markfoundation

A student claims: 'To find P(A ∪ B), you simply add P(A) and P(B).' Explain why this is not always correct, and state the correct formula with a reason.

3 markshigher

14

exam-style questions

12

revision flashcards

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