Permutations+and+Combinations


 * Permutations and combinations are both ways to find the number of possible outcomes.

Combinations: --When finding combinations, it is important to remember to eliminate duplicates. =do this by dividing--- (Ex. 20*19*18*17 has to be divided by 1*2*3*4)
 * The way things can be randomly picked... order does not matter

Permutations: --since order does matter, DO NOT DIVIDE....
 * Order DOES matter!! --think of a NASCAR lineup....