## Discrete vs Continuous variables: Definitions.

## What is a Discrete Variable?

**Discrete variables** are countable in a finite amount of time. For example, you can count the change in your pocket. You can count the money in your bank account. You could also count the amount of money in *everyone’s* bank accounts. It might take you a long time to count that last item, but the point is—it’s still countable.

*Discrete variables on a scatter plot.*

## What is a Continuous Variable?

**Continuous Variables** would (literally) take forever to count. In fact, you would get to “forever” and never finish counting them. For example, take age. You can’t count “age”. **Why not?** Because it would literally take forever. For example, you could be:
25 years, 10 months, 2 days, 5 hours, 4 seconds, 4 milliseconds, 8 nanoseconds, 99 picosends…and so on.

*Time is a continuous variable.*

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