| A | B |
| experiment | An activity with varying results |
| outcome | A possible result of an experiment. |
| event | A collection of one or more favorable outcomes of an experiement. |
| probability | A number from 0 to 1 that measures the likelihood that an event will occur. |
| dependent events | Two events such that the occurrence of one event affects the likelihood that the other event will occur. |
| fair experiment | An experiment in which all of the possible outcomes are equally likely. |
| experiemental probability | Probability that is based on repeated trials of an experiment. |
| independent events | Two events such that the occurrence of one event does not affect the likelihood that the other event will occur. |
| theoretical probability | The ratio of the number of favorable outcomes to the number of possible outcomes when all possible outcomes are equally likely. |