The son of a major league baseball player is 800 times more likely to play in the majors than is an “average kid.”

Related Fact: On September 14, 1990, Seattle Mariners Ken Griffey and Ken Griffey, Jr. became the first and only father-son combination to hit back-to-back home runs in a Major League game.

[Sources: Freakonomics and Bleacher Report. See previous Numbers of the Day here. ]