Probability

Conditional probability is the likelihood of event A occurring, given that event B has already occurred.

• Notation: P(A|B) • Formula: P(A|B) = P(A ∩ B) / P(B), where P(B) ≠ 0 • Key Point: It reduces the original sample space to event B. • Example: Finding the probability of drawing a King, given that the card is a Face card.