P(A \( \cap \) B) = \(\frac{1}{3}\) , P(A \( \cup \) B) = \(\frac{5}{6}\) , P(A) = \(\frac{1}{2}\) হলে, P(B) = কত?
Solution
Correct Answer: Option B
আমরা জানি,
P(A ∪ B) = P(A) + P(B) - P(A ∩ B)
⇒ 5/6 = 1/2 + P(B) - 1/3
⇒ P(B) = 5/6 - 1/6
⇒ P(B) = 4/6 = 2/3
P(A ∪ B) = P(A) + P(B) - P(A ∩ B)
⇒ 5/6 = 1/2 + P(B) - 1/3
⇒ P(B) = 5/6 - 1/6
⇒ P(B) = 4/6 = 2/3
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