2 . If 5 people from Mexico, 2 people from Canada, and 3 people from France randomly sit down in adjacent seats at a concert, what's the probability that everyone from Canada sits together and everyone from Mexico sits together? 3. The letters A, B, C, D, E, F, G, H are randomly arranged to form a "word". ** a. What's the probability that D , E , F , G are next to each other and E and F are also next to each other? .