Why average girls don't get laid

{Author's note: I have been besieged with e-mails asking me about this cartoon. Many do not get it because either I am too smart or I am an idiot. I'm sure many of you know which is correct. I drew this after reading an article about averages and how people can get them confused with medians. Basically what I am trying to say is that the "average" girl might turn out to be 0.5. And who wants to hook up with 50% of a girl?}