Answer on Question #49068 – Math – Combinatorics | Number Theory
Why order does not matter in combination?
Why does order matter in permutation?? please explain with examples
Solution.
Sometimes order matters. For example, we want to choose 3 digits from 10 possible and form a 3-digit number.
In this case .
Thus, to calculate the number of possible combinations we should use the formula for permutation.
Sometimes order doesn't matters. For example, we want to choose 3 men from the set of 10 persons. In this case the order in which we choose them does not matter and we should use the formula for combination.
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