00:01
All right, this one says the family has seven children.
00:03
If you list the possible genders of the children, example, boy, boy, girl, girl, boy, boy.
00:09
Where b is boy and g is girl, how many lists are possible.
00:14
So, um, one, two, three, four, five, six, seven.
00:19
So for the first, um, child, there's two possibilities.
00:24
Second one is two...