What is the set of all possible outcomes called?

• A. Sample Space
• B. Experiment
• C. Outcome
• D. Probability

Answer: (A)

The main idea is identifying the collection of every possible result an experiment can yield. This collection is called the sample space. It includes all the outcomes that could possibly occur, not just one of them. For example, when you roll a standard six-sided die, the possible results are 1 through 6, so the sample space is {1, 2, 3, 4, 5, 6}. When you flip a coin, the possible results are heads or tails, so the sample space is {Heads, Tails}. An individual result you observe is an outcome—one member of the sample space. The term probability describes how likely each outcome is, often based on the sample space, and the experiment is the process that produces one of those outcomes. The sample space can be finite or infinite depending on the situation.