math - help please
posted by sarah on .
Assume that 2 cards are drawn in succession and without replacement from a standard deck of 52 cards. Find the probability that the following occurs: the second card is a 9, given that the first card was a 9.
Use the definition of conditional probability:
P(X9|9X) in the previous question.
=(4/52)*(3/51) / (4/52)