The events A and B are such that P(B)=750\displaystyle P(B) = \frac{7}{50}P(B)=507, P(A∪B)=625\displaystyle P(A \cup B) = \frac{6}{25}P(A∪B)=256, P(B∣A′)=985\displaystyle P(B|A') = \frac{9}{85}P(B∣A′)=859.
Find P(A)P(A)P(A)
Find P(A∩B)P(A \cap B)P(A∩B)
Find P(A∣B)P(A|B)P(A∣B)
368 exam-style questions on Edexcel A Level Maths Conditional Probability, covering 2.1 Set Notation, 2.2 Conditional Probability, 2.3 Conditional Probabilities in Venn Diagrams, 2.4 Probability Formulae, and 2.5 Tree Diagrams. Each one has a worked solution and a mark scheme showing where the marks go.