00:01
Okay, so we have a group that consists of four men and five women.
00:05
And we want to do three women to pick for this conference out of the five.
00:10
So we're going to have five and we're choosing three.
00:14
And this is just a combination formula that i have up here that you need to use for this.
00:18
So as you can tell, the n is five, the r is three.
00:22
So we can go ahead and plug into this formula.
00:24
So we have five factorial over three factorial times.
00:31
5 minus 3 factorial.
00:36
And all you do for factorial, like 5 factorial, would be 5 times 4 times 3 times 2 times 1, which is 20 times 6 or 120.
00:51
So 120 goes on top...