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If A and B are any two events, then the ...

If A and B are any two events, then the probability that exactly one of them occurs is

A

a) P(A) + P(B) - `2 P(A nn B)`

B

b) P(A) + P(B) + `P(A nn B)`

C

c) P(A) + P(B)

D

d) P(A) + P(B) - `P(A nn B)`

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