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Permutations Suppose that the 4-digit pass code a computer tablet owner uses to lock the device cannot have any digits that repeat. For example, 1234 is a valid pass code. However, 1123 is not a valid pass code since the digit 1 is repeated. An arrangement of four digits with no repeats is an example of a permutation. A permutation is an arrangement in a certain order (a sequence). How many different 4-digit pass codes are possible if digits cannot be repeated? 1* digit 2 digit 3 digit 4" digit " \"~ Ss s~ Oooo