Aresearcher is curious about the average age of drivers in the city of columbus. if he obtains a database of every driver in the city and calculates the average, this is an example of a

Parameter

Explanation:

A parameter is generally referred to as an any characteristic or trait that might  help in delineate or categorizing a specific system. Therefore, a parameter can also be referred to as an component of a system which is considered to be useful, or detracting, while identifying this system, or while evaluating its status, performance etc.

there is an explationation of this on a site called crash   course world history 1

answer; consonant;