माना कि X और Y एक प्रतिदर्श समष्टि की दो घटनाएँ इस प्रकार हैं कि P(X) = \(\frac{1}{3}\), P(X/Y) = \(\frac{1}{2}\) और P(Y/X) = \(\frac{2}{5}\) है, तो: 

1
P(X ∩ Y) = \(\frac{1}{5}\)
2
P(X ∪ Y) = \(\frac{2}{5}\)
3
P(Y) = \(\frac{1}{6}\)
4
P(X̅/Y) = \(\frac{1}{2}\)

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