Probability using permutations and combinations

In this video, I show you how to use permutations and combinations to work out probabilities.
A committee of 5 people is to be selected from a group of 5 men and 6 women. What is the probability that the committee contains 2 men and 3 women?
Each of 5 cards has one of the letters A, B, C, D and E written on them. The cards are shuffled. What is the probability that the letters A and B are together?

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