Population Pyramids and Population Data Mr Scully Population

Population Pyramids and Population Data Mr Scully

� Population pyramids are graphs that show the age and sex structure of the population of a specific place. They can be interpreted to make predictions about the future of a particular population. � The �a general characteristics of population pyramids are: full pyramid represents 100 per cent � age groupings can show actual numbers or percentages of the total population � the right side of the graph always represents females � the left side of the graph always represents males � age categories are generally broken into five year groupings such as 0– 4 and 5– 9.

Population pyramids showing the age structure of the Australian population in 1987 and 2007

� You can be asked to calculate the number of people in an age cohort: for example, ‘Calculate the number of Australians in the 0– 4 age group. ’ However, to do this, you need the number of people included in the population. � 1987 = 16, 263, 874 � 2007 = 22, 174, 815 � This data can then be used to link with other information to provide a clearer picture on how events, access to services and other items can affect population trends.

a population pyramid is easy! The trick is to accurately place the data in the correct place. MALES AGE GROUPS � Making FEMALES DATA HEADINGS