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Definitions:

Range

The difference between the largest and smallest values in a data set.

Coefficient of Variation

A standardized measure of dispersion of a probability distribution or frequency distribution, expressed as a percentage of the mean.

Ether

A class of organic compounds characterized by an oxygen atom connected to two alkyl or aryl groups; they are often used as solvents.

Molecule

The smallest particle of a chemical element or compound that has the chemical properties of that element or compound.

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