Question: Please show combination rule for counting and show your work trying to understand. I used this formula n C r= n!/(n-r)!r! How many ways can

Please show combination rule for counting and show your work trying to understand.

I used this formula

nCr= n!/(n-r)!r!

  1. How many ways can 4 finalists for a job be chosen from 10 interviewees?

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