For the events A A\,A and BBB, P(A∩B′)=0.32,P(A′∩B)=0.11P(A \cap B') = 0.32, P(A' \cap B) = 0.11P(A∩B′)=0.32,P(A′∩B)=0.11 and P(A∪B)=0.65P(A \cup B) = 0.65P(A∪B)=0.65.
Draw a Venn diagram to illustrate the complete sample space for the events A A\,A and BBB.
Write down the value of P(A)P(A)P(A) and the value of P(B)P(B)P(B).
Find P(A∣B′)P(A | B')P(A∣B′).
Determine whether or not A A\,A and B B\,B are independent.
Practise Edexcel A Level Old Maths Probability with exam-style questions for A Level Old Maths. 11 questions, matched to the Edexcel A Level Old Maths (9371) specification and written in Unit exams C1, C2, C3 and C4 plus two applied units (e.g. S1 and M1) style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.