00:01
So for this problem, we want to look for the probability if you draw two cards off the top of the deck of finding both face cards or both black.
00:16
In order to solve this problem, we need to recognize when to multiply your fractions and when to add.
00:20
So when you see an or, you want to add.
00:23
If you intend on using and, so black and black, we want to multiply, face and face.
00:29
We want to multiply.
00:29
That's what that means.
00:30
So let's get started.
00:31
So the probability of finding both face cards, well, face cards make up 12 cards out of 52.
00:38
And if you've already drawn one card, then you'll only have 11 out of 51.
00:43
So there's our first set.
00:45
Plus, because there's no more, both black...