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[(1)/(2)" and "P(B)=(2)/(3)" ,then show ...

[(1)/(2)" and "P(B)=(2)/(3)" ,then show that "],[[" (1) "P(A uu B)>=(2)/(3)," (ii) "(1)/(6)<=P(A nn B)<=(1)/(2)],[" (iii) "P(A nnbar(B))<=(1)/(3)," (iv) "(1)/(6)<=P(bar(A)nn B)<=(1)/(2)]]

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