index number


noun Statistics.

a quantity whose variation over a period of time measures the change in some phenomenon.
Also called index.

Origin of index number

First recorded in 1870–75

British Dictionary definitions for index number

index number

noun

statistics a statistic indicating the relative change occurring in each successive period of time in the price, volume, or value of a commodity or in a general economic variable, such as the price level, national income, or gross output, with reference to a previous base period conventionally given the number 100