Facebook Friend Distribution

Wang Chung · Posted: Thu Jul 05, 2012 6:46 pm Post subject: Facebook Friend Distribution

https://www.facebook.com/note.php?note_id=10150388519243859

The above is a cumulative distribution function of the number of facebook friends. On the left side (vertical axis) is the cumulative percentile (e.g. 0% to 100% or 0 to 1, it's basically a probability), and on the X-axis is # of friends. So 100% of people have <= 5000 friends, and 0% have <= 0 friends, and the curve describes everywhere in between. The median number of friends is 100 (50% of people have less than 100 friends, 50% of people have more than 100 friends), and the mean (average) is 190, which means that the distribution is pretty heavily skewed by a small fraction of people that have absurd amounts of friends.

Here's a really fascinating bit:

Quote:

At first glance, the median friend count on Facebook — 100 — may seem surprisingly low; a quick survey of my own friends reveals that they almost all have more than 100 friends. But no, your friends are not atypically social – a classic paradox regarding social networks dictates that, for most people, the median friend count of their friends is higher than their own friend count. On Facebook, that’s the case for 84% of our users. Why? Scott Feld wrote about this phenomenon in his 1991 paper Why Your Friends Have More Friends than You Do, showing that the same phenomenon dictates that college students typically find that their classes to be larger than the average class size, and that when sitting on an airplane, it will typically be more crowded than the average occupancy. These effects all arise because for people, classes, and flights to be popular, you must be much more likely to choose them. So you shouldn’t feel bad if it seems like all your friends are more popular than you: it appears this way to most of us.

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is now -=|CT|=- Frothy Mixture

Stealth · Posted: Thu Jul 05, 2012 7:06 pm Post subject:

That is a very interesting phenomenon.
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Motherfucking Triangles! Being all three sided n' shit, who do they think they are?!

Messy Recipe · Posted: Thu Jul 05, 2012 7:21 pm Post subject:

Same reason you're usually in the lane with more traffic.
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ABC News wrote:

Birds can disable planes, Ostrom said, by flying into the engines and shutting them down.

xsupermage · Posted: Tue Apr 22, 2025 2:12 pm Post subject:

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