Nearly, but just to nitpick, you're not including randomness, you're actively making a choice to make the resulting pattern difficult to distinguish from random

Nearly, but just to nitpick, you're not including randomness, you're actively making a choice to make the resulting pattern difficult to distinguish from randomness. So, sometimes you raise by a large amount because you have a strong hand. You don't want other players to be identify that you have a strong hand by the fact that you just offered a large raise, so you have to also bluff sometimes, raising when you really don't have the cards. Your actions are not random, but they are perceived as random by the other players.