Question

What is permutation and combination ????​

Answer 1

Permutation and Combination. Permutation : It is the different arrangements of a given number of elements taken one by one, or some, or all at a time. For example, if we have two elements A and B, then there are two possible arrangements, AB and BA.

Answer 2

Answer:

A permutation is an act of arranging the objects or numbers in order.

Combinations are the way of selecting the objects or numbers from a group of objects or collection, in such a way that the order of the objects does not matter.

The example of permutations is the number of 2 letter words which can be formed by using the letters in a word say, GREAT; 5P_2 = 5!/(5-2)!

The example of combinations is in how many combinations we can write the words using the vowels of word GREAT; 5C_2 =5!/[2! (5-2)!]