## The Australian Census

*Learning intention: to explore different types of graphical representations, identify their key features and describe situations in which they would be useful to the presentation of data in a meaningful way.*

What sort of data is collected via the census that provides the government with information about the Australian people?

Why do they need to collect this data?

What would the government do without this data?

Why do they need to collect this data?

What would the government do without this data?

## Bar Graph

## Double Bar Graph

A double bar graph is useful for making comparisons, it breaks the data into two (or more) categories.
The example on the left breaks the data into boys and for girls. We can tell at a glance that the most popular sport for girls is Soccer, and that basketball is much more popular for boys than girls. Notice - each data set (boys, girls) is colour coded with a key. This makes deciphering the graph easier. |

## Stacked Bar Graphs

A Stacked bar graph is a graph that is used to compare the parts to the whole.

The bars in a stacked bar graph are divided into categories which are colour coded and stacked on top of each other, and each bar represents a total. For example the total number of under 12's that are homeless is approximately 15000.

Stacked bar graphs can be useful when comparing data, but have some limitations. We will explore these graphs today.

The bars in a stacked bar graph are divided into categories which are colour coded and stacked on top of each other, and each bar represents a total. For example the total number of under 12's that are homeless is approximately 15000.

Stacked bar graphs can be useful when comparing data, but have some limitations. We will explore these graphs today.

## Homelessness

Follow the link below to the interactive graphing tool.

## Log into Google Classroom and use the join code i33dzx

## Complete the questions on stacked bar graphs. This is due on Friday.

## Line Graphs

## Double Line Graph

## Double Line Graphs Extension

Follow the link to the bureau of Meteorology - http://www.bom.gov.au/climate/averages/tables/cw_009225.shtml

Create a double line graph plotting the mean median temperature for each month in Perth across the year, compared to the rainfall. Remember, you will need to colour code your data, provide a key, and will need to label your axis differently.

Create a double line graph plotting the mean median temperature for each month in Perth across the year, compared to the rainfall. Remember, you will need to colour code your data, provide a key, and will need to label your axis differently.

## Travel Graphs

## Travel Graphs Extension

## Create a travel graph showing the distance you have travelled over time.

Using the data you collected from our timed race yesterday, create a travel graph to show the distance and time you have run.

Calculating speed in km/h