permutation

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“The number of ways of arranging a set of items when some of them are not included. For example, the number of ways of selecting 3 items from 20 is 6840. P(n, k) = n!/(n-k)! In Excel Permut(n, k). With permutations, each ordering is considered to be different (A, B, C is different from B, A, C). If ordering does not matter, use the formula for combinations.”

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By |February 1st, 2019|Comments Off on permutation