Skip to content

Course home

2.4 Probability Formulae

2.4 Probability Formulae

Medium
1234567891011121314151617181920212223242526272829
Question 25

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.

a.

Find P(R′∩S′)P(R' \cap S')P(R′∩S′).

[2]
b.

Find P(R′∩S)P(R' \cap S)P(R′∩S).

[2]
c.

Given also that the events R R\,R and S S\,S are independent, find P(S)P(S)P(S).

[4]
d.

Find P(R′∪S′)P(R' \cup S')P(R′∪S′).

[2]
Markscheme

2.4 Probability Formulae Questions

  1. A Level
  2. /Maths
  3. /2.4 Probability Formulae

29 exam-style questions on Edexcel A Level Maths 2.4 Probability Formulae. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank