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Plz reply fast; evaluate P(AUB) if; 2P(A)=P(B)=5/13 AND P(A/B)=2/5

$P (A ⋂ B) = P (A / B) \cdot P (B) P (A ⋂ B) = \frac{2}{5} \cdot \frac{5}{13} = \frac{2}{13} N o w, P (A ⋃ B) = P (A) + P (B) - P (A ⋂ B) P (A ⋃ B) = \frac{5}{26} + \frac{5}{13} - \frac{2}{13} = \frac{11}{26}$

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