JEE Mathematics · Easy

Probability: Conditional probability MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
Conditional probabilityEasyQuestion 270005

Question

P(A|B) is defined as:
  1. A
    P(A ∩ B)/P(B)
    Correct
  2. B
    P(A ∩ B)/P(A)
  3. C
    P(A) × P(B)
  4. D
    P(A + B)

Correct answer

P(A ∩ B)/P(B)

Explanation

Conditional probability of A given B: P(A|B) = P(A ∩ B)/P(B), provided P(B) > 0.