The events R R\,R and S S\,S are such that P(R)=0.1P(R) = 0.1P(R)=0.1 and P(R∪S)=0.55P(R \cup S) = 0.55P(R∪S)=0.55.
Find P(R′∩S′)P(R' \cap S')P(R′∩S′).
Find P(R′∩S)P(R' \cap S)P(R′∩S).
Given also that the events R R\,R and S S\,S are independent, find P(S)P(S)P(S).
Find P(R′∪S′)P(R' \cup S')P(R′∪S′).
Practise Edexcel A Level Maths Probability Formulae with exam-style questions for A Level Maths. 33 questions, 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.
