Hence, Permutation is used for lists (order matters) and Combination for groups (order doesn't matter). Famous joke for the difference is: A “combination lock” should really be called a “permutation lock”. The order you put in the numbers of lock matters.

Where is permutation used in real life?

An example of permutations would be the arrangement of books on a shelf. An easy one is to say there are 5 different books...how many ways can you arrange them on the shelf (in the typical upright position of libraries) ??

How are permutations used in the real world?

What are the real-life examples of permutations and combinations? Arranging people, digits, numbers, alphabets, letters, and colours are examples of permutations. Selection of menu, food, clothes, subjects, the team are examples of combinations.