Edexcel S1 2004 June — Question 6

Exam BoardEdexcel
ModuleS1 (Statistics 1)
Year2004
SessionJune
TopicIndependent Events
TypeIndependence with three or more events

6. Three events \(A , B\) and \(C\) are defined in the sample space \(S\). The events \(A\) and \(B\) are mutually exclusive and \(A\) and \(C\) are independent.
  1. Draw a Venn diagram to illustrate the relationships between the 3 events and the sample space. Given that \(\mathrm { P } ( A ) = 0.2 , \mathrm { P } ( B ) = 0.4\) and \(\mathrm { P } ( A \cup C ) = 0.7\), find
  2. \(\mathrm { P } ( A C )\),
  3. \(\mathrm { P } ( A \cup B )\),
  4. \(\mathrm { P } ( C )\). END