Question 2
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
a.[2]
Complete the probability tree diagram.
b.[3]
Work out the probability Paul wears different coloured ties on Monday and Tuesday.
Conditional Probability Questions
4 exam-style questions on Oxford AQA IGCSE Maths Conditional Probability. Each one has a worked solution and a mark scheme showing where the marks go.