1.

यदि `P(A)=6/11, P(B)=5/11, P(A uu B)=7/11` तो ज्ञात कीजिए- `P(A nn B)`

Answer» यहाँ `P(A)=6/11, P(B)=5/11`,
`P(A uu B)=7/11`.
हम जानते हैं, की
`P(A uu B)=P(A)+P(B)-P(A nn B)`
`implies 7/11=6/11+5/11-P(A nn B)`
`implies P(A nn B)=1-7/11=4/11`.


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