Originally Posted by KarenH
From Brian's Wiki post: "It was also found that 99.91% of Facebook users were interconnected, forming a large connected component."
Of course, otherwise what is the point? I really feel sorry for the 0.09% of the 1.6 billion people on FB who must have a stand-alone wall/page with absolutely no friends or connections. Probably still live in the basement of their parents' house...
That's not what the statisticians meant. That comes from The Anatomy of the Facebook Social Graph
, which says:
... the social network is nearly fully connected, with 99.91% of individuals belonging to a single large connected component.
That means 99.1% of all Facebook users are in one
group (think of this as the mainland), in which every member is connected to every
other member (not just some members) by some combination of connections. The other 0.09% are not isolated individuals; they're just in smaller groups (like islands); since that 0.09% is over a million accounts, some of the islands could still have huge populations.