The events X X\,X and Y Y\,Y are such that P(X)=0.4P(X) = 0.4P(X)=0.4 and P(X∪Y)=0.8P(X \cup Y) = 0.8P(X∪Y)=0.8.
Find P(X′∩Y′)P(X' \cap Y')P(X′∩Y′).
Find P(X′∩Y)P(X' \cap Y)P(X′∩Y).
Given also that the events X X\,X and Y Y\,Y are independent, find P(Y)P(Y)P(Y).
Find P(X′∪Y′)P(X' \cup 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.