How do I go about solving this?
4 cards are drawn from a pack of 52 playing cards without replacment. What is the probability that two are black and two are red?
Does this version look familiar to you?
The number of ways of getting 2 red cards from the 26 is: .
And similiarly for black cards: .
The total number of different ways of taking 4 cards from 52 is: .
So the probability of getting 2 red cards, and 2 black cards, is: .