00:01
All right, so the number's four, five, and six are on a spinner, and we spin the spinner twice.
00:05
What's the probability of letting a four, then landing on a four again? so let's take the nice, the perfect case.
00:12
The perfect case is fun.
00:14
So that would mean, what i mean is perfect, it's you have an equal probability.
00:20
So let's say they're all equal, four, five, and six.
00:24
Well, for it to land on four, you'd have to, you'd get a one -third probability, the probability of four, it's a third.
00:32
And then for that to happen, again, we would need a probability of four again.
00:38
So let's do a little tree diagram.
00:41
One, two, three.
00:42
He's got four, five, and six.
00:47
And then for the second spin, you could go four, five, or six, four, five, or six, or six.
00:55
And the only ones we want, it's four...