Although rading only looks at the forex trading chart, it includes analysis, if that is without analysis if the trader just opens a buy or sell position without considering anything.
Traders can also rely on risk and reward. every time you open a position. the important thing is that the trader determines where the first time the position is open, and where the stop loss is placed. by using risk and reward that is needed by consistent traders and discipline in measuring their loss and profit.
And this is related to the probability of trading which has the concept that each movement will not continue straight, there must be a time for price correction. so it's just the choice and the right timing.