What is the difference between permutation and combinations?

Answer 1

A permutation is an arrangement of objects in some specific order. Permutations are regarded as ordered elements.

A selection in which order is not important is called a combination. Combinations are regarded as sets.

For example, if there is a group of 3 different colored balls, then any group of 2 balls selected from it will be considered as a combination, whereas the different arrangements of every combination will be considered as a permutation.

Answer 2

A permutation is a combination in order. If the order does not matter, then it is a combination. If the order does matter, then it is considered a permutation.

Answer 3

The order of the objects matters in permutations. For combinations the order is irrelevant.

Answer 4

In a combination the order of the elements does not matter. In a permutation the order does matter.