00:01
Okay, so we're looking for an outcome where two girls and two boys are made in a four -child family.
00:06
So let's write out all the possible options.
00:09
We could have, on one extreme, all four b boys.
00:15
Of course, on that extreme, we could have all four b girls.
00:22
And now we could start getting into the combos.
00:24
So we could have boy, boy, boy, girl.
00:30
Boy, boy, girl, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, boy, um, um, girl boy, boy, girl.
01:17
Girl, boy, girl, boy...