Social Sciences and History / Unit 11 SSH 1007 short lesson, about 20 seconds
Reading a Population Pyramid
Captions available
The idea
A population pyramid graphs the distribution of age groups, cohorts, in a population. A wide base is young and fertile; a wide top, aging. The dependency ratio compares those outside the labor force, generally under fifteen and over sixty-five, with those in it.
In practice
A bulge in the twenties: a boom cohort.
Where people slip
The pyramid shows structure, not size.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Unlocks
- Nothing yet depends on this.
Something wrong in this lesson? Flag it