The chart depicts the average golf distances for each club for men and women. We'd say that "skill" (swing mechanics & Center hits) & swing swing speed are the two defining factors; but, you can't just swing faster and expect results. No Joke!
A good grip is nearly essential to playing consistently good golf. It turns out that a shocking number of swing problems can be mostly or completely fixed by a simple grip adjustment. Learn all about how to grip the club properly here: