Question

Explain Permutations & Combination in simple way with formula please?​

Answer 1

Answer:

Hey there,

Permutation and Combination are often confusing to many. The easiest way that I could understand the concept was to understand that

Permutation is an arrangement of things where order of arrangement matters. The position of each thing in a permutation matters. Thus, Permutation can be associated with Position.

Combination is grouping/selection of things where order does not matter. Permutation can be considered as an ordered combination.

Now, let us get into formal definitions and mathematical representations:

Permutation: Permutation is defined as an arrangement of r things that can be done out of given total of n things. The number of arrangements is denoted by nPr which is equal to n!(n−r)!

Combination: Combination is defined as grouping/ selection of r things that can be formed out of given total of n objects/things. The number of arrangements is denoted by nCr which is equal to n!r!(n−r)!

Below are some of the differences between Permutation and Combination:

Step-by-step explanation:

hope it helped you

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