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Permutation or combination

Kimiko

New member
Joined
May 10, 2012
Messages
7
How many ways can 10 actors who try out for a play fill the 4 roles. Completely Frazzled
 

wjm11

Senior Member
Joined
Nov 13, 2004
Messages
1,417
How many ways can 10 actors who try out for a play fill the 4 roles. Completely Frazzled
If you simply had to choose 4 items out of 10, it would be a combination. However, you must also assign each actor to one of the four roles, and there are many ways to do this. This makes it a permutation problem.
 
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