| A | B |
| complementary events | One or the other event must take place. |
| event | a specific outcome ot type of outcome. |
| fair game | A game in which players have an equal chance of winning. |
| independent event | two or more events in which the outcome of one event does not affect the outcome of the other event. |
| outcomes | Possible results of aprobability event. |
| random | When the outcome is choosen without any preferences. |
| sample | A randomly selected group that is used to represent a whole population. |
| theoretical probability | The ratio of the numbers of ways an event can occur to the number of possible outcomes. |
| unfair game | A game in which players do not have an equal chance of winning. |
| input | Information given to a function machine |
| output | The results |