Statistics

Distribution Function of a Statistical Variable

Arithmetic function in which the domain is the set of the modalities or the values of a statistical attribute.

Example

Consider a set of ordered pairs corresponding to the data in the table below, which illustrates the evolution of the price of a computer over the years since personal computers first appeared:
Years 1982 1988 1994 2000 2006
Price ($) 4900 2950 2000 1275 980
These ordered pairs describe a distribution function of the set of years (1982 to 2006) in the set of prices expressed in dollars. The graph of this function, in the form of a line graph, looks like this:

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