- Variable - Glossary Term
- Numerical variables are variables whose values are numbers, and for which arithmetic processes such as adding andsubtracting, or calculating an average, make sense.A discrete numerical variable is a numerical variable, each of whose possible values is separated from the next by a definite‘gap’. The most common numerical variables have the counting numbers 0,1,2,3,… as possible values. Others are prices,measured in dollars and cents.Examples include the number of children in a family or the number of days in a month.