Friend Figures

The Friday File: While the number of close friends we have averages three, and the number of people we call friends is about 150 (also known as the Dunbar number), the number of people we know, including persons we see or communicate with as infrequently as every other year, averages 611, with a median of 472. 1.5% of the population know as few as 100-149 people, 5% know over 1,500.