#statistics 

## Types
- Discrete variable - consists of isolated numbers separated by gaps (1,2,3, etc)
- Continuous variable - consists of numbers whose values, at least in theory, have no restrictions (e.g. weighs - like 140.01438 lbs)

- Dependent variables (believed to have been influenced by the independent variable)
- Independent variables (manipulated by the investigator in an experiment)

**Confounding variable** - an uncontrolled variable that compromises the interpretation of a study.