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Conditional Probability

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Question 8

The events A A\,A and B B\,B are such that P(A)=0.8P(A) = 0.8P(A)=0.8, P(B)=0.3P(B) = 0.3P(B)=0.3, and P(A∩B)=0.2P(A \cap B) = 0.2P(A∩B)=0.2.

a.

Find P(A∪B)P(A \cup B)P(A∪B).

[2]
b.

Find P(A∣B)P(A|B)P(A∣B).

[3]
c.

Find P(A′∣B′)P(A'|B')P(A′∣B′).

[3]

Conditional Probability Questions

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