Sarah is going to enter a general knowledge quiz and complete a logic puzzle.
The probability she will win the quiz is 0.65
The probability she will complete the logic puzzle is 0.2
Work out the probability that Sarah will be successful in exactly one of these activities.
Practise Edexcel GCSE Maths Probability Trees with exam-style questions for Foundation and Higher tier. 40 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.