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Check whether the following probabilitie...

Check whether the following probabilities `P(A)a n d\ P(B)` are consistently defined: `P(A)=0. 5 , P(B)=0. 4 , P(AuuB)=0. 8`

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Given,`P(A)=0.5`
`P(B)=0.4`
we know that
`P(A∪B)=P(A)+P(B)−P(A∩B)`
...
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