You can put this solution on YOUR website! Permutations and Combinations are very similar. But the greatest difference between the two is that permutations are concerned with the order of the items in a given set, where combinations are not. For example. combination could be used to find how many ways five of eight students can be chosen to go on a field trip to the movies. (We are only concerned with the students, not their particular arrangement). With a permutation, we could figure out how many ways these students can be arranged to sit by one another at the movie. (Here, order is important).
Combination:
Permutation:
8 x 7 x 6 x 5 x 4
For the combination, there are 56 ways to select five of eight students.
And from the permutations, we know that there are 6820 ways to arrange these students.