00:01
All right, first question is, what is not a? well, first we need to find out what a is.
00:07
A is the event a male is appointed chairperson.
00:11
So not a would be when a female is appointed chairperson.
00:16
I'm going to write that off to the side right here.
00:18
We're looking for a female.
00:20
Females only a win.
00:22
And that would be all of these right here.
00:25
I'm just going to copy -paste.
00:28
That's here.
00:29
That would be mary and sue or whatever their names are.
00:36
Hold on.
00:37
Maria.
00:38
Maria and susan, susan and maria.
00:42
Because there's one first one's chairperson.
00:44
The next one's secretary.
00:45
Secretary draws the short straw.
00:47
First time i've actually heard of short straw being used in this context with the actual straw being pulled.
00:55
I'm getting off track.
00:56
So these are all the combinations of only women being elected.
01:02
There we go.
01:04
Now for b and d, what is b? well, b is the event holly is appointed chairperson.
01:12
So we're only going to look at the column where there's h's...