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The ____________________ Is the Mean of a Variable Over All

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The ____________________ is the mean of a variable over all observations.


Definitions:

Molecular Weight

The sum of the atomic weights of all atoms in a molecule, used in calculating concentrations and reactions in chemistry.

Ethylene Glycol

A toxic organic compound commonly used as an automotive antifreeze and a precursor to polymers.

1,2-Ethanediol

A chemical compound commonly known as ethylene glycol, used as an antifreeze and precursor to polymers.

Propanoic Acid

A colorless, oily liquid with a pungent odor, used in the manufacture of various chemicals, including as a preservative.

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