00:01
Okay, so three diagram.
00:02
Here we have the first child, and the first child could be boy or girl, an equal chance of each.
00:12
So a one -half chance for a boy and a one -half chance for a girl.
00:17
Now, second child also could be a boy or a girl.
00:25
Again, a one -half chance for each one.
00:30
Girl first, second child, boy, girl.
00:36
Again, one half for each.
00:40
Now, the third child, also boy, girl, and also one half, one half.
00:52
Here, same thing all the way down.
00:56
One half, one half, boy, girl.
01:06
One half, one half, boy, girl.
01:13
Now the fourth one, there's kind of much room here now.
01:22
Boy girl.
01:24
This is the fourth child.
01:29
Again, one half, one half, boy girl, one half, one half, boy girl, and the same all the way down.
01:55
So each branch then, the same chance of occurring.
01:58
One half times one half times one half or one out of eight...