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Correlation
A statistical measure that indicates the extent to which two or more variables fluctuate together, revealing whether and how strongly pairs of variables are related.
Correlation
A statistical measure that expresses the extent to which two variables change together, but does not necessarily imply causation.
pH
A scale used to specify the acidity or basicity of an aqueous solution, with values ranging from 0 (highly acidic) to 14 (highly basic), and 7 being neutral.
Hardness
A measure of the resistance of a material to being scratched or indented.
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