1) Permutations are arrangements (sequence matters), while combinations are selections (order does not matter). a) Fact b) Bluff 2) 0! Is equal to 0. a) Fact b) Bluff 3) n!/(n-r)! Is the formula for Combination. a) Fact b) Bluff 4) 6! Is equal to 720 a) Fact b) Bluff 5) 3! + 3! = (3 + 3)!5. a) Fact b) Bluff

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