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Science Forum Index » Mathematics Forum » permutation question
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| grocery_stocker |
 Posted: Tue Apr 29, 2008 9:09 am |
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Guest
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This is quoted from a math proof
"the average is simply the sum of the times over all permutations of
the input divided by n factorial, it's equivalent to choosing a random
permutation of the input."
I just realized I have no idea what this statement means. How can a
random permutation of the input be equivalent to the sum of the times
over all permutations of the input divided by n factorial? Can someone
give me a concrete example? |
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