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​Q4: Answers – Paper 3 – June 2018

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Content:

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

Quizzes:

• Probability Trees

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Mark Scheme

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Working
When a biased 6-sided dice is thrown once, the probability that it will land on 4 is 0.65
The biased dice is thrown twice.

Amir draws this probability tree diagram.
The diagram is not correct.

Write down two things that are wrong with the probability tree diagram.

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Question

4) When a biased 6-sided dice is thrown once, the probability that it will land on 4 is 0.65
The biased dice is thrown twice.

Amir draws this probability tree diagram.
The diagram is not correct.

 Write down two things that are wrong with the probability tree diagram.

[2 marks]

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