00:01
So we have two different sock drawers.
00:01
In a, we have seven blue and three red, and in b, we have three blue and seven red.
00:08
We're going to randomly pick a pair of sock out of each drawer.
00:12
What's the probability that we get a matching pair? so in other words, we need a red and a red or a blue and a blue.
00:22
So let's see, excuse me.
00:24
So probability of getting a red out of, this is for a and this is b, this will be, a and b.
00:31
So these are our sock drawers.
00:33
So the probability getting a red out of our stock drawer here is going to be three red out of 10.
00:40
The red here, three red out of 10...