Statistics Dictionary

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Ratio Scale

The ratio scale of measurement is a type of measurement scale. It is characterized by equal intervals between scale units and a minimum scale value of zero.

The weight of an object would be an example of a ratio scale. Units along the weight scale are equal to one another, and the minimum value is zero.

Weight scales have a minimum value of zero because objects at rest can be weightless, but they cannot have negative weight.

See also:  Scales of Measurement