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Probability question (1 Viewer)

Joined
May 22, 2021
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HSC
2022
Can someone please show me how to do this question? My class recently started teaching us probability.

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cossine

Well-Known Member
Joined
Jul 24, 2020
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626
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Male
HSC
2017
Just apply the definition of conditional probability

P(A|B) = P(A n B)/P(B)

This definition can be rewritten as

P(A|B) = P(A and B) /P(B)

due to relationship between logic and set theory.
 

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