age structure
Chat with our AI personalities
Persia or the black death
middle ages
-1000
Population, in statistics, is the entirety of units for which some variable information is collected for statistical purposes. "Population" need not have anything to do with people. For example, in a forestry study the population might be all trees in a given area, and the measured variable could be the species and/or ages of a selection (sample) of the population.
The answer will depend on where you live. People finish high schools at different ages in different parts of the world.