Does anyone know if a player's attributes are whole numbers, or do the fractional points matter in game?

Basically, does a qb with a passing skill of 7.0 who then trains passing in a week play better the next game with his 7.02 passing?

It displays whole numbers yes, but does it affect the game engine only at level pops or is say a just leveled 7.01 markedly different from a almost ready to level 7.98?