Each day Paul wears either a black tie or a red tie to work.
On any day the probability he wears a black tie is 59\displaystyle \frac{5}{9}95
His choice of tie on each day is independent of his choices on other days.
Complete the probability tree diagram for Monday and Tuesday.
Work out the probability Paul wears different coloured ties on Monday and Tuesday.
54 exam-style questions on Edexcel GCSE Maths Probability Trees. Each one has a worked solution and a mark scheme showing where the marks go.