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2 Statistics

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Question 25

A bag contains 10 blue, 8 red and 6 green counters. Two counters are removed at random without replacement.

a.

Draw a tree diagram to represent the selections.

[3]
b.

Find the probability that both counters are green.

[2]
c.

Given that at least one counter is red, find the probability that both counters are red.

[3]
Markscheme

2 Statistics Questions

  1. A Level
  2. /Maths
  3. /2 Statistics

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