Which statement correctly describes the purpose of a population pyramid?

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A population pyramid illustrates the distribution of a population by age and gender.A population pyramid always uses exact population counts as its basis.Only researchers find population pyramids useful.Interpreting a population pyramid demands advanced statistical methods to analyze age and gender relationships.

Explanation

A population pyramid is a graphical representation that shows the breakdown of a population by age groups and sex. It does not necessarily require absolute numbers, nor is it exclusively of interest to academics. Additionally, understanding a population pyramid does not involve complicated statistical calculations.