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If M and N are any two events, then the ...

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

A

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

B

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

C

`p_(1)+p_(2)-p_(1)p_(2)`

D

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

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The correct Answer is:
A
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