00:01
The student council has 10 members.
00:03
Four are going to be forming an executive committee with these four positions.
00:08
In how many ways can these four positions be filled? so we have our council of 10 and we're taking out four of them.
00:17
So we want to know how many different ways there are of choosing four members.
00:21
Does the order in which we choose them matter? yes, because our executive committee has different roles.
00:27
We could pick the same four members, but have them have different roles, and that would be a different way of picking them.
00:35
So in this case, the order matters.
00:42
So this is a combination permutation question.
00:46
The difference is in a combination, the order doesn't matter.
00:50
You just need to pick four people, doesn't matter because there's no roles, or they all have the same role.
00:56
Permutation order matters...