👉 Nonprobable is a concept in probability theory that refers to an event or probability distribution that cannot be predicted with certainty. It's like saying you can't predict whether it will rain tomorrow, but you know it won't snow unless it does. For example, if you roll a fair six-sided die, the outcome (number) of each throw is nonprobable. The probability of getting any individual number doesn't change based on how many times you do the experiment.