Answer:
A permutation is a mathematical technique that determines the number of possible arrangements in a set when the order of the arrangements matters. Common mathematical problems involve choosing only several items from a set of items with a certain order.
Step-by-step explanation:
Jobs where a person could use Permutations
Combo Lock designers: These people design the locks that are used for gates, bikes, and lockers. They use permutations to assign combos that haven't been used previously, are the only combination that opens a lock, and cannot be cracked.