SOLUTION: How many different ways are there for an admissions officer to select a group of 6 college candidates from a group of 15 applicants for an interview?
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Question 204775: How many different ways are there for an admissions officer to select a group of 6 college candidates from a group of 15 applicants for an interview?
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
nCr Combination because arrangement is not important.
=n!/[(n-r)!r!]
=15!/[(15-6)!6!]
=(15*14*13*12*11*10*9!)/(9!6!)
=(15*14*13*12*11*10)/(6*5*4*3*2)
=5005
.
Ed
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