A ratio scale has a zero point that literally indicates the absence of the quantity being measured, whereas an interval scale has a zero point that does not indicate the absence of the quantity.

Question

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A ratio scale has an absolute zero, meaning zero indicates the absence of the quantity (e.g., weight, height), while an interval scale has an arbitrary zero that does not signify absence (e.g., temperature in Celsius).

A Ratio Scale Has a Zero Point That Literally Indicates