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Combinations

A combination is a selection of items from a collection such that the order of selection does not matter.

Combinations

A combination is a selection of items from a collection such that the order of selection does not matter. That is the act of combining the elements irrespective of their order. Let us suppose that in an interview two office assistants are to be selected out of 4 persons namely A, B, C and D. The selection may be of AB, AC, AD, BC, BD, CD (we cannot write BA, since AB and BA are of the same selection). Number of ways of selecting 2 persons out of 4 persons is 6.It is represented as 4C2

The process of different selection without repetition is called Combination.

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11th Business Mathematics and Statistics(EMS) : Chapter 2 : Algebra : Combinations | Definition, Formula, Solved Example Problems, Exercise | Mathematics