Population Flashcards
How many births are there per second around the world?
7
What’s the % of Canadians over 65?
12%
What are factors that affect population?
Social trends, national policies, disease
What’s the formula for the natural increase?
Births-deaths
Ex: 906➖639=267
Births>Deaths
What’s the formula for net migration?
Immigration day-Emigration day
Ex: 655➖107=488
Immigrants>Emigrants
What’s the formula for the birth rate?
Number of births in one year ➗ the population ✖️ 1000
Ex: 330,000➗32,207✖️1000=10 births for every 1000/year
What’s death rate?
The number of deaths per year for every 1000 people
What’s the formula for population growth rate?
Natural increase rate ➕ net migration rate.
Ex: 3/1000➕5/1000=8/1000 (or 0.8%)
What’s immigration?
To move permanently to a country other than one’s native country.
What’s emigration?
To leave your country of origin to live permanently in another country.
What’s demography?
Study of population numbers, distribution, trends, and issues. Also statistics like births, deaths, income, etc.
What’s the most populous country in the world?
China
What’s doubling time?
To see how long it would take for a country’s population to double at the current growth rate.
What’s the rule of 70?
You ➗ 70 by the population growth rate, and thus gives you an estimate of how many years it will take the population to double.
What’s dependency load?
Proportion of the population that isn’t in the work force; total number of people 14 and under, plus 65 and over.
