Each day Paul wears either a black tie or a red tie to work.
On Monday the probability he wears a black tie is 0.6
If Paul wears a black tie on Monday, the probability that he will wear a black tie on Tuesday is 0.35 If he does not wear a black tie on Monday, the probability that he will wear a black tie on Tuesday is 0.68
Complete the probability tree diagram.

Work out the probability Paul wears different coloured ties on Monday and Tuesday.
28 exam-style questions on AQA GCSE Maths Conditional Probability. Each one has a worked solution and a mark scheme showing where the marks go.