For the events A and B.
The probability of A is kkk, where 0.4<k<0.90.4 < k < 0.90.4<k<0.9. The probability of B is 0.5 The probability of neither A or B is 0.1.
Find P(A and B)P(A \text{ and } B)P(A and B) in terms of kkk.
Draw a Venn diagram for this information.
Determine the value of k k\,k for which A and B are independent.
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.