Question: 13. Prove that a. P(EF c) = P(E)P(EF ) b. P(EcFc) = 1 P(E)P(F) +P(EF )

13. Prove that

a. P(EF

c) = P(E)−P(EF )

b. P(EcFc) = 1− P(E)−P(F) +P(EF )

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