Safe combinations are permutations because the order of the numbers matters to open the safe. An anagram where different words come from the same root word is another example. Order matters ...

This example, from Keith Soper at Merck, illustrates the exact permutation Cochran-Armitage test carried out on permutation resamples. In the following data set, the 0s represent failures and the 1s ...

Enter permutations. In math, a permutation is the number of ways a set can be arranged. For example, there are two permutations for a set consisting of the numbers 2 and 7 (the permutations are 2 ...