Two events A and B are such that P(A)=0.6P(A) = 0.6P(A)=0.6 and P(B)=kP(B) = kP(B)=k and P(A and B)=0.4P(A \text{ and } B) = 0.4P(A and B)=0.4, where 0.4≤k≤0.80.4 \le k \le 0.80.4≤k≤0.8
Draw a Venn diagram for this information, labelling each region with its exact probability in terms of kkk.
186 exam-style questions on Edexcel A Level Maths Probability, covering 5.1 Calculating Probabilities, 5.2 Venn Diagrams, 5.3 Mutually Exclusive and Independent Events, and 5.4 Tree Diagrams. Each one has a worked solution and a mark scheme showing where the marks go.