Misc 1 (i) - Chapter 13 Class 12 Probability

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Misc 1 A and B are two events such that P (A) ≠ 0. Find P(B|A), if (i) A is a subset of BSince A is a subset of B So, A ⊂ B ∴ A ∩ B = A So, P(A ∩ B) = P(A) Now, P(B|A) = (𝑃(𝐵 ∩ 𝐴))/(𝑃(𝐴)) = (𝑷(𝑨))/(𝑃(𝐴)) = 1 ∴ P(B|A) = 1

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