Question 3
250 households were surveyed about pet ownership. Every household either has a dog or does not have a dog.
80 of the households have a dog. 62 of the households with a dog live in a house. 160 of the households live in a house, while the rest live in apartments.
a.[3]
Use this information to complete the frequency tree.
b.[2]
One of the households with a dog is chosen at random.
Write down the probability that this household is an apartment.
Frequency Trees Questions
28 exam-style questions on Edexcel GCSE Maths Frequency Trees. Each one has a worked solution and a mark scheme showing where the marks go.