Conditional Probability
9
Medium
0/5

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.

Complete the probability tree diagram.

A probability tree diagram for Paul's tie choices on Monday and Tuesday.

[2]
b.

Work out the probability Paul wears different coloured ties on Monday and Tuesday.

[3]

Conditional Probability Questions

Practise OCR GCSE Maths Conditional Probability with exam-style questions for Foundation and Higher tier. 28 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers 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.

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Conditional Probability Questions

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