I know, odd question about facebook friends, but is there any way of figuring this out?

[Koral]

If someone had a certain amount of facebook friends last night and now tonight has 8 more friends 24 hours later, is it more likely he got friend requests or sent out friend requests?

I understand that this is an odd question, but if anything in hopes of answering this would help me.
I know he was on a week ago. Would it be normal to get 8 friend requests in a week or sent them out and got 8 people to accept in 24 hours? He doesn't have over 200 friends and not a wide range of cities/contacts of friends.