That is a correct reasoning. In classical physics, as everything is predetermined, no real probabilities exist. We use probability theory to gauge our uncertain

That is a correct reasoning. In classical physics, as everything is predetermined, no real probabilities exist. We use probability theory to gauge our uncertainty about the world. If you knew the position of every particle in the dice, there would be no distribution of side, it would always come up the same. But we don't and can't know everything, thus we use probabilities to express that. If you throw the dice, your uncertainty drops because you know the outcome of the experiment.