[@GreivousKhan]
I'm assuming you meant stats XD 
But they just give alittle bit of a role play aspect in what your character is capable of, so if you have a 9 in strength but a 4 in endurance your character could be taking a lot of hits and carrimg a lot of things around but you wouldn't say your character can sprint everywhere. Or if they have a 4 in int you wouldn't have your character come up with a master plan in seconds.