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Well, what is it?
- A population pyramid is like a visualization of a country’s current population structure.
- It usually shows the population distribution in terms of gender and age cohorts.
- By doing this, you can better understand a country’s level of economic development, future demographics and more!
But how does it work? 😕
- Well, the pyramid is usually divided into two columns, the blue side usually indicative for the male populace and pink/red for the female populace.
- Then, you will notice that each column seems to be like a bar graph placed on its side, which is basically what it is.
- The left axis (or middle axis, depending on the pyramid) will show the age cohorts, which are grouped by five years. They start with age 0 (newborns) and then end with age cohorts between 80 to 100+.
- The bottom axis will then usually shows percentage or whole numbers to represent how much each age cohort makes up the population.
- Thus, the longer the bar is for a certain age group, the larger the population of that gender is.
- So, by understanding the elements of a population pyramid, only then can you understand what information you can glean from a population pyramid.
Pretty easy graph, right?
- The population pyramid is one of the simplest graphs you will need to understand for the APHUG exam and it can help you out for understanding a country’s economy and demographics for stimulus-based questions.
- It can also help you gain a better understanding of how the DTM works at each stage with separate graphs.
- And a bit of advice for these graphs: don’t worry too much about them. Once you understand them, they’re very quick and easy to put into practice!