If you're one of those rare few who both likes rap music AND has your statistical geek on, you might get a kick out of this - statz rappers. Looks like some grad students had WAAAY too much time on their hands.
That line sticks in your head: "Got your difference on the top, and your error on the bottom."
If I could only do this for my finance classes.
HT: Mungowits End