1. Population pyramids is graphical representation of data which enables oneself to distinguish and have a clear picture in minds about the ratio of population densities keeping any one parameter as constant. Population pyramids could be used to analyze data in many different scales on the basis of gender,age groups, race etc. Examples-having a record of no. of individuals in different age groups in India.

2. Generally, there are 3 types of population pyramid on the basis of shapes of the pyramid. Those are;

Expansive
Constrictive
Stable

Siting an example of age-sex pyramids,

In case of the Expansive, population pyramids show that the populations that have a larger number of persons in young age groups. The shape obtained hence is usually with high fertility rates with lower death rates

Then comes, Constrictive population pyramids. These are named so since they are constricted at the bottom. They undue a low percent of young people as compared with other age groups. These type of pyramids show decreasing birth rates.

And at last, Stationary also called as stable population pyramids are the ones which depicts almost equal proportion of the population in each of the all age groups. There is not a decrease or increase in population; it is stable.

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3 years ago

The Canadian Open is a professional golf tournament in Canada It is organized by the Royal Canadian Golf Association / Golf Cana

irinina [24]

WGC-Bridgestone is your answer

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3 years ago

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A student surveyed 226 classmates to see if they owned a dog or cat. There are 131 students who own a dog and 85 who own a cat.

Verizon [17]

C) 85
B) 46
D) 131
All you have to do it plug in the cats owned for c and dogs owned for d and then subtract the two for b. Hope that helps!

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