Quick probability question. Help, please? - circular rack
Seven different types of clothing will be organized in a circular grid.
a. How many different arrangements are possible?
b. How many agreements on a circular grid differs from the correct number of agreements on a grill? Explain the reason for these differences.
Sunday, January 17, 2010
Circular Rack Quick Probability Question. Help, Please?
5 comments:
If you are n objects is n! Permutations of these objects.
If all the objects, N and R, choose one of them a year! (N - r)! Permutations of r objects, this can be written as P n R.
set when a group of n objects there are n (-1)! Permutations. This is because the account of the rotation of the circle. This means that no further copies of any permutation.
a) 7 items in a circle
(7-1)! = 6! = 720 permutations
b) the permutations in a row: 7! = 5040
>> = O
>> = O
Is there really a difference? since both have the same number agreed. 7 * 6 * 5 * 4 * 3 * 1
Wowwwwwwwwwww.
You learn nothing in the mathematics classroom
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