4 ms·
Say Alice has 100 friends and Bob has 5, and the average is 20. That means Alice has 100 people whose "number of friends of friends" statistic she's increasing,
by orangecat 17y ago
Say Alice has 100 friends and Bob has 5, and the average is 20. That means Alice has 100 people whose "number of friends of friends" statistic she's increasing, while Bob is only lowering it for 5.
- cynicalkane 17y agoThis is pretty much it. I'd make an intuitive guess that the average number of friends of friends is Sum((F_n)^2) / Sum(F_n), where F_n is the number of friends that person n has.