Question 63

If A and B are two events and A ≠ φ, B ≠ φ, then P(A ∩ B)

• (A)P(A | B) = P(A).P(B)
• (B)P(A | B) = P(B)
• (C)P(A | B).P(B | A)=1
• (D)P(A | B) = P(A) | P(B)