| A | B |
| Conversion factor | A factor by which one unit can be converted to another. |
| Counting principal | To find the number of possible outcomes for an event that has different stages, multiply the number of choices in each stage of the event. |
| Cross products property | The property that states: If b and d are not equal to zero and a/b=c/d, then ad=bc. |
| Dependent event | Characteristic of two events if the outcome of the first event affects the probability of the second event. |
| Equal ratios | Ratios that represent the same comparison. |
| Event | A collection of possible outcomes of an experiment |
| Experimental probability | A probability calculation based on the collection of data. |
| Independent event | Characteristic of two events if the outcome of the first event does not affect the probability of the second event. |
| Outcome | Any of the possible combinations of a counting problem. |