From 50/50 (it could swing either way and you can have zero knowledge on which way it'll swing), to %1-100 being able to know before hand, how much can you know?
if you have more learning on how the market moves you can predict it more accurately . This is not pure gambling where all works randomly
What causes prices to go up? What causes them to go down? Obviously, no one knows for certain when it would happened, but has there been a consistent "pattern" lately? When prices have gone down, have you known to a reasonable degree than they would bounce back up? How?
Price go up when someone buys and price goes down when someone's sells . Both works effectively if the action is done in large volumes . you will know if your one of it that sells or buy and you can also know if you watch and read news , social media and other sources but make sure they are legit because false information will not move the price in a right direction . That's the pattern that all are following until now