In computing a conditional probability we assume that we know the outcome of the experiment is in event B and then, given that additional information, we calculate the probability that the outcome...In computing a conditional probability we assume that we know the outcome of the experiment is in event B and then, given that additional information, we calculate the probability that the outcome is also in event A. If we let C denote the event that the card is a club and K the event that it is a King, then we are looking to compute P(C|K)=P(C∩K)P(K). To compute these probabilities, we count the number of outcomes in the following events:
