Alphabetical
variable
[noun]
In math, an expression that can be assigned any set of values. Variables are written as symbols, such as x, y or z, representing unspecified quantities or members of a set.
In science, the term refers to a condition or parameter that may be manipulated, fixed, measured, or observed in the course of scientific research. There are usually three categories of variables in science experiments; control, independent (experimental) and dependent (response). For more information, see our module Experimentation in Scientific Research.
Appears in modules:
- Animal Ecology
- Atomic Theory III
- Barbara McClintock
- Cell Division I
- Chemical Bonding
- Chemical Reactions II
- Comparison in Scientific Research
- Composition of Earth's Atmosphere
- Confidence Intervals
- Description in Scientific Research
- Experimentation in Scientific Research
- Exponential Equations I
- Exponential Equations II
- Franklin Chang Díaz
- Introduction to Inferential Statistics
- Linear Equations
- Modeling in Scientific Research
- Population Biology
- Properties of Gases
- Properties of Solids
- Statistics in Science
- The Practice of Science
- Uncertainty, Error, and Confidence
- Understanding Scientific Journals and Articles
- Unit Conversion
- Using Graphs and Visual Data in Science
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