1. MARCH 11, 2015 POPULATION PYRAMIDS

2. POPULATION PYRAMID A graph that depicts population distribution by age and sex Youngest on the bottom, oldest on the top Males on the left, females on the right These pyramids help us understand trends of a country’s population

3. WHAT CAN A POPULATION PYRAMID TELL US? Birth rate – number of births per 1,000 people Death Rate – number of deaths per 1,000 people Life Expectancy – average lifespan of a population Education levels – more educated populations have smaller families Quality of healthcare – better healthcare increases average lifespan Future Needs – Retirement homes? Pensions? Schools? Immigrants?

4. CANADA AS AN EXAMPLE Canada’s Growth Rate: 0.76%

5. 3 TYPES OF POPULATION PYRAMIDS Rapid Growth: When the birth rate exceeds the death rate Steady: When the birth rate and the death rate are about the same Decreasing Population: When the death rate exceeds the birth rate

6. RAPID GROWTH EXAMPLE Population Growth Rate: 2.89%

7. STEADY POPULATION EXAMPLE Population Growth Rate: 0.77%

8. DECREASING POPULATION EXAMPLE: Population Growth Rate: - 0.18%

9. ST. CATHARINES POPULATION PYRAMID Keying Sequence for % : “=B3/B21” (this will give you % for males age 0-4)

10. CREATING YOUR POPULATION PYRAMID http://www.excel-exercise.com/charts/population- pyramid/