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2.3.2 Conditional probability (A-level only)

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Question 22

A fruit basket contains 12 apples, 9 bananas, and 4 oranges. Two pieces of fruit are taken from the basket at random.

a.

Draw a tree diagram to represent this information.

[3]
b.

Find the probability that both pieces of fruit are oranges.

[2]
c.

Given that at least one of the fruits is a banana, find the probability that both are bananas.

[3]

2.3.2 Conditional probability (A-level only) Questions

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