The events X X\,X and Y Y\,Y are such that P(X)=0.6P(X) = 0.6P(X)=0.6, P(Y)=0.4P(Y) = 0.4P(Y)=0.4, and P(X∩Y)=0.25P(X \cap Y) = 0.25P(X∩Y)=0.25.
Find P(X∪Y)P(X \cup Y)P(X∪Y).
Find P(X∣Y)P(X|Y)P(X∣Y).
Find P(X′∣Y′)P(X'|Y')P(X′∣Y′).
Practise Edexcel A Level Maths Conditional Probability with exam-style questions for A Level Maths. 100 questions covering Set Notation, Conditional Probability, Conditional Probabilities in Venn Diagrams, Probability Formulae, and Tree Diagrams, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 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.