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Permutation is when order matters, combination is when order does not matter

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9y ago

Permutations are used when the order of the elements matters, otherwise combinations are used.

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Q: When we use permutation or combination?
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Permutation combination?

They are concepts used in probability theory.


Why are the answers from a permutation bigger than from a combination?

Because a permutation includes all the different arrangements or order of the items in a set. In a combination the order doesn't matter or count.


What is the formula for ring permutation?

N!/N


How many three digit combinations are there in a 60 digit combination lock?

The "combination" for a lock is actually a permutation, an ordered sequence. So for example: 1,2,3 and 3,2,1 are the same combination, but a different permutation. When opening a lock, obviously the sequence is important, so we want to calculate the permutations. To do that, you multiply the number of possible choices for the first position times the number of possible choices for the second position, etc. Assuming that you can use the same number in all three positions (so 60 to the left, 60 to the right and 60 to the left is a valid choice), there are 60 x 60 x 60 possible permutations, or "combinations" for the lock = 216,000. If you were not allowed to use the same number twice, it would be 60 x 59 x 58 = 205,320. If you could repeat the same number, but not in sequence (so 20, 30, 20 is OK; but 20, 20, 30 is not), then there would be 60 x 59 x 59 = 208,860.


You want to get questions on permutation and combination?

(b) A tea party is arranged for 16 persons along two sides of a table with 8 chairs on each side. 4 persons wish to sit on on particular side and 2 on the other side. In how many ways can they be seated? (

Related questions

When order is not important do you use permutation or combination?

You would use combination when order does not matter.


Difference between permutation and combination?

the permutation is an specific ordered combination. the combination is not need specific order combination...


Is choosing 3 dishes from a menu a permutation or a combination?

Combination if you don't care about the order you eat them in. Permutation if you do such as the appetizers, then entree and finally desert.


How maths terms combination and permutation apply in chemistry?

The Maths terms combination and permutation apply in chemistry when making the expected industrial calculation.


What are relationship between permutation and combination?

please answer


What is the difference between permutation and combinations?

A permutation is an arrangement of objects in some specific order. Permutations are regarded as ordered elements. A selection in which order is not important is called a combination. Combinations are regarded as sets. For example, if there is a group of 3 different colored balls, then any group of 2 balls selected from it will be considered as a combination, whereas the different arrangements of every combination will be considered as a permutation.


Permutation combination?

They are concepts used in probability theory.


Give an example of a permutation and combination?

If there is a group of 3 coloured balls, then any groups of 2 balls selected from it will be considered as a combination, whereas the different arrangements of every combination will be considered as a permutation


Why are the answers from a permutation bigger than from a combination?

Because a permutation includes all the different arrangements or order of the items in a set. In a combination the order doesn't matter or count.


Multiplication rule combination and permutation examples?

1=1


How do you tell the difference between a combination and a permutation?

no. You say hello wewe


Why is a combination lock named incorrectly?

Because it should be called a permutation lock.