That's just a visual and there's no guarantee that someone you want to try it will have exact numbers as projected, if that's what you mean to say from that screenshot.
So, simulations don't work to predict how the rolls will come. It helps us to get an idea of what could happen if we have the right luck.
Exactly, it's just a projection with numbers on how much you could get and what will be the
possible result for those numbers but in actual, they're all going to change and not accurate as the one you've projected.