For each event, circle the most appropriate term. 50!/(50-5)!.5! Counting principle     Combination    Factorial    Permutation 

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The number of ways of choosing r objects from a set that has n objects is the number of...

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oldnick | Student

Combination of n element in k  place with k<n is:

 

`[[n,],[k,]]=(n!)/(k!(n-k)!)`

 

Thus `(50!)/(5!(50-5))! = [[50,],[5,]]`

Therefore is a combination.

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