​Probability

​Is the likelihood or possibility that something will happen. Always written as a fraction or a percentage.

​Sample Space

A sample space is the set of all possible outcomes in the experiment. It is usually denoted by the letter S. Sample space can be written using the set notation, { }.

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​Experiment 1: Tossing a coin

Possible outcomes are head or tail.

Sample space, S = {head, tail}

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Experiment 2: Tossing a die

Possible outcomes are the numbers 1, 2, 3, 4, 5, and 6

Sample space, S = {1, 2, 3, 4, 5, 6}