Factor is a measurement of a defensive player's range. It is a simple statistic that is calculated by adding a fielder's put outs and assists, multiplying that number by nine and dividing the result by games played.

Derek Jeter is rated as an average defensive player by some "experts." Others consider him to be and to have been below average.

Range Factor for an infielder is dependent upon the number of ground balls put into play. Maybe, I hoped, that if they didn't hit many ground balls, I could rationalize Jeter's RF.  A batter that strikes out doesn't hit a ground ball.

The following table lists Jeter's Range Factor and the number of strikeouts New York Yankees pitchers recorded from 1996-2001:

 
YEAR    SO    RF

1996    1139    3.81      
1997    1165    3.90      
1998    ...

Read Full Article at Bleacher Report - MLB By Harold Friend