Definition
Possible Outcome
A possible outcome is a complete result admitted by the model of a random experiment, whether or not that result occurs in a particular trial. For a sample space ,
The sample space is therefore precisely the set of all possible outcomes.
Probability of a Possible Outcome
Warning
Possible does not necessarily mean positive probability. In a continuous model, an individual possible outcome may have probability zero even though it belongs to the sample space.
Examples
Rolling a die
For an ordinary six-sided die, . Each face value is a possible outcome before a roll, although only one becomes the realised outcome.