Edexcel Paper 3 Specimen — Question 4

Exam BoardEdexcel
ModulePaper 3 (Paper 3)
SessionSpecimen
TopicProbability Definitions
TypeCombined event algebra

  1. Given that
$$\mathrm { P } ( A ) = 0.35 \quad \mathrm { P } ( B ) = 0.45 \quad \text { and } \quad \mathrm { P } ( A \cap B ) = 0.13$$ find
  1. \(\mathrm { P } \left( A ^ { \prime } \mid B ^ { \prime } \right)\)
  2. Explain why the events \(A\) and \(B\) are not independent. The event \(C\) has \(\mathrm { P } ( C ) = 0.20\)
    The events \(A\) and \(C\) are mutually exclusive and the events \(B\) and \(C\) are statistically independent.
  3. Draw a Venn diagram to illustrate the events \(A , B\) and \(C\), giving the probabilities for each region.
  4. Find \(\mathrm { P } \left( [ B \cup C ] ^ { \prime } \right)\)