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In a group of Lord of the Rings fans, 9 can speak Elvish and 7 can speak Khuzdul (the dwarves language). If a group of

In a group of Lord of the Rings fans, 9 can speak Elvish and 7 can speak Khuzdul (the dwarves language). If a group of 5 fans is chosen, what is the probability that at least four people speak Elvish?

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