SOLUTION: The question is: Compute: 8C2 But the 8 and 2 are subscripts. How do I calculate this, and what does it mean?

Question 573800: The question is: Compute: 8C2
But the 8 and 2 are subscripts. How do I calculate this, and what does it mean?
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
this is the notation for the number of COMBINATIONS (order not important) of 2 things from a group of 8 things

nCr = n! / [r! * (n - r)!]

! is the notation for factorial ___ it means the product of the number and all the numbers down to one
___ 5! = 5 * 4 * 3 * 2 * 1
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