Trading is also considered as a gambling, meaning even slight, you are relying on your luck. But you can't call that a guess because you are analyzing a data, and it is really ironic when you say educated guess, educated means you analyze data, and a guess is just a wild bullet, so you do not say it is an educated guess, you can say that it is an assumption.
There is so little based on luck when it comes to real financial trading that you're making a fool of yourself if you try to just hit it big. Large investors like Warren Buffet and other don't just throw money at a random penny stock and hope that it goes up in value, they play the game and watch to see what will move in a long or short direction, and plan accordingly for it.