6.If P(A) = 0.43, P(B) = 0.55, and P(A n B) = 0.35 find the probability that i) P(not A) + P(not B ) ii) P(A U B)' iii) Neither A nor B happens iv) P(A/B) v) P(B|A) vi) P(A n B)'

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A: It is an important part of statistics . It is widely used in statistics .