difference between permutation and combination
Asked by visakha | 23rd Nov, 2013, 03:31: PM
A permutation is an arrangement in a definite order of a number of objects taken some or all at a time. In permutations order is important.
Counting combinations is merely counting the number of ways in which some or all objects at a time are selected.
Answered by | 23rd Nov, 2013, 11:53: PM
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