Question 315056: what does nCr stand for? email me at shylasolis@yahoo.com
Answer by rapaljer(4671)   (Show Source):
You can put this solution on YOUR website! nCr means the number of COMBINATIONS of n things taken r at a time. As an example, if you are choosing 3 people out of a total of 10 members of a club to attend a convention, this is a combination of 10 people, where you are choosing 3 of them. The answer can be calculated by taking 10*9*8 and dividing by 3*2*1.
Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
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