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If S is the sample space and P(A)=1/3P\ ...

If S is the sample space and `P(A)=1/3P\ (B)a n d\ S=AuuB ,\ w h e r e\ A\ a n d\ B` are two mutually exclusive events then `P(A)=` `1//4` b. `1//2` c. `3//4` d. `3//8`

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