The notation which is the most appropriate notation when calculating conditional probabilities is:
B. [tex]P(C|D)=\dfrac{P(C\bigcap D)}{P(D)}[/tex]
In statistics, the conditional probability is defined as the probability of an event given that the other event has already occurred.
i.e. if C and D are two events such that the event D has already occurred then the conditional probability of C given D is given by:
[tex]P(C|D)=\dfrac{P(C\bigcap D)}{P(D)}[/tex]
Hence, option: B is the correct answer.
