Let A and B be two events in a random experiment with sample space such that P(B) ≠ 0 and P(A|B)=1. Which of the following is true ?
Answer & explanation
Correct answer: option 2
The correct answer is Option (1) → $A⊂B$
$P(B)≠0,P(A|B)=1⇒P(A∩B)=P(B)$
$B⊂A$