Caleb makes a cola drink. He is doing a taste test. He asks 80 people if they prefer cola A or cola B.
41 of the people asked were male. 22 of the 50 people that prefer cola A are female.
Use this information to complete the frequency tree.
One of the 80 people is chosen at random. Write down the probability that this person is male and preferred cola A.
7 exam-style questions on Oxford AQA IGCSE Maths Frequency Trees. Each one has a worked solution and a mark scheme showing where the marks go.