Back to OCR Maths Foundation November 2018 Paper 1 Home
​Q24: Question – Paper 1 – November 2018

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Content:

• Probability Trees – Part 1
• Probability Trees – Part 2​

Quizzes:

• Probability Trees

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Question

24) Romelu picks a shirt and shorts.
The probability he picks a red shirt is 0.4.
The probability he picks white shorts is 0.7.

​a) Complete the tree diagram.

[3 marks]​

​b) Calculate the probability that Romelu picks a red shirt but does not pick white shorts.

[2 marks]​

Show answers