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Conditional Probability

Conditional Probability

Medium
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Question 1

There are only red marbles and green marbles in a bag.
There are 6 red marbles and 4 green marbles.

Mason takes at random a marble from the bag. He does not put the marble back in the bag.

Mason takes at random a second marble from the bag.

a.

Complete the probability tree diagram.

A probability tree diagram for two marbles.

[2]
b.

Work out the probability that Mason takes two marbles the same colour.

[2]
Markscheme

Conditional Probability Questions

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

4 exam-style questions on CIE IGCSE Maths Conditional Probability. Each one has a worked solution and a mark scheme showing where the marks go.

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