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Conditional Probability

Conditional Probability

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Question 1

There are 8 counters in a bag. 5 of the counters are red. 3 of the counters are blue. Two counters are taken at random from the bag.

a.

Work out P(Red, Blue)P(\text{Red, Blue})P(Red, Blue) and P(Blue, Red)P(\text{Blue, Red})P(Blue, Red).

[2]
b.

Hence, work out the probability that one counter of each colour are taken.

You must show your working.

[2]
Markscheme

Conditional Probability Questions

  1. GCSE
  2. /Maths
  3. /Conditional Probability

72 exam-style questions on OCR GCSE Maths Conditional Probability. Each one has a worked solution and a mark scheme showing where the marks go.

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