he-following-is-the-correct-formal-definition-of-the-conditional-probability-pba

Question

Which of the following is the correct formal definition of the conditional probability P(B|A)?

Accepted Answer

P(B|A) = P(A ∩ B) / P(A)

Answer

P(B|A) = P(B) / P(A)

Answer

P(B|A) = P(A ∪ B) / P(A)

Answer

P(B|A) = P(A ∩ B) / P(B)