A media analyst surveys 120 people about which streaming services they use. They can choose from Netflix (NNN), Disney+ (DDD), and Amazon Prime (AAA).
15 people use all three services. 25 people use Netflix and Disney+. 22 people use Disney+ and Amazon Prime. 30 people use Netflix and Amazon Prime. 70 people use Netflix. 50 people use Disney+. 60 people use Amazon Prime.
Draw a Venn diagram for this information.
One of the people is selected at random. Given they use Amazon Prime, find the probability they do not use Netflix.
368 exam-style questions on Edexcel A Level Maths Conditional Probability, covering 2.1 Set Notation, 2.2 Conditional Probability, 2.3 Conditional Probabilities in Venn Diagrams, 2.4 Probability Formulae, and 2.5 Tree Diagrams. Each one has a worked solution and a mark scheme showing where the marks go.