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.
Use this information to complete the frequency tree.
One of the households with a dog is chosen at random.
Write down the probability that this household is an apartment.
Frequency Trees Questions
Practise Edexcel GCSE Maths Frequency Trees with exam-style questions for Foundation and Higher tier. 28 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.