In probability, what does the term "event" refer to?

In probability, the term "event" refers to a set of outcomes from a sample space. An event can encompass one outcome or multiple outcomes but is typically viewed as a subset of the sample space, which includes all possible outcomes of a given experiment.

For example, if you are conducting an experiment of rolling a six-sided die, the sample space consists of the outcomes {1, 2, 3, 4, 5, 6}. An event could be rolling an even number, which would include the outcomes {2, 4, 6}. Thus, while individual outcomes represent specific results, an event is more comprehensive, capturing all results that meet certain criteria.

This understanding is fundamental in probability, as it allows for the analysis of various scenarios within a single experiment and helps in calculating the likelihood of those scenarios occurring.