Skip to content

Course home

2.3 M: Probability

2.3 M: Probability

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125
Question 98

The Venn diagram below shows three events AAA, B B\,B and CCC, with probabilities as marked.

Figure for question 7

It is given that P(A)=0.4P(A) = 0.4P(A)=0.4 and P(A∪B)=0.7P(A \cup B) = 0.7P(A∪B)=0.7.

a.

Find the values of ppp, q q\,q and rrr.

[4]
b.

State, giving a reason, whether the events A A\,A and B B\,B are independent.

[2]
Markscheme

2.3 M: Probability Questions

  1. A Level
  2. /Maths
  3. /2.3 M: Probability

198 exam-style questions on AQA A Level Maths 2.3 M: Probability, covering 2.3.1 Mutually exclusive and independent events, 2.3.2 Conditional probability (A-level only), 2.3.3 Modelling with probability (A-level only), and 2.3 M: Probability. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank