Each day Sarah travels to school by either bus or bike.
On Thursday, the probability she travels by bus is 0.7.
If Sarah travels by bus on Thursday, the probability she travels by bus on Friday is 0.8. If she does not travel by bus on Thursday, the probability she travels by bus on Friday is 0.3.
Complete the probability tree diagram.
Work out the probability Sarah uses different types of transport on Thursday and Friday.
Conditional Probability Questions
Practise AQA GCSE Maths Conditional Probability with exam-style questions for Foundation and Higher tier. 28 questions, matched to the AQA GCSE Maths (8300) 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.