a movie director with a high 'batting average' [=a director who has created many successful movies and few unsuccessful movies]
The children in that class 'average' four feet in height. [=the average height of the children is 4 feet]
Her daily commute 'averages' 40 minutes. [=the average length of her daily commute is 40 minutes]
(..) Okay. Yeah, I don't know, you know. You'll probably be about as good as I was. That's kind of the way it works, you know. I was below average. You know, so you'll probably ultimately rank... ...somewhere around there, you know, so... ...I really... You'll excel at (..)2006 The Pursuit of Happyness