Data Graphs
Tables and graphs are visual representations of data used to organise information to show patterns and relationships. A variable is any characteristic, number, or quantity that can be measured or counted. Why do we use a graph?
We use a graph to organise information so we can look for patterns. We use different
types of graphs, such as picture, column or line graphs, for different purposes.
What does a graph include?
A graph includes a title, axes with labels on them and the units of measurement.
A variable may also be called a 'data item'. Qualitative variables are those that express a qualitative attribute such as eye colour, religion, gender, and so on.
Qualitative variables are sometimes referred to as categorical variables. Quantitative variables are those variables that are measured in terms of numbers. Some examples of quantitative variables are height, weight, and shoe size.
We use a graph to organise information so we can look for patterns. We use different
types of graphs, such as picture, column or line graphs, for different purposes.
What does a graph include?
A graph includes a title, axes with labels on them and the units of measurement.
A variable may also be called a 'data item'. Qualitative variables are those that express a qualitative attribute such as eye colour, religion, gender, and so on.
Qualitative variables are sometimes referred to as categorical variables. Quantitative variables are those variables that are measured in terms of numbers. Some examples of quantitative variables are height, weight, and shoe size.