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2 Unit 2: Applied Mathematics A

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Question 96

A component is made by machine A, B or C with probabilities 0.40, 0.35 and 0.25 respectively. Their respective fault probabilities are 0.03, 0.02 and 0.01.

a.

Draw a probability tree.

[3]
b.

Find the probability that a randomly selected component was made by A and is faulty.

[1]
c.

Find the probability that a randomly selected component is faulty.

[2]
Markscheme

2 Unit 2: Applied Mathematics A Questions

  1. A Level
  2. /Maths
  3. /2 Unit 2: Applied Mathematics A

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