Types of graphs and charts
The type of graph you use depends on the type of data you want to represent.
- Discrete data is best represented using bar charts.
- Temperature graphs would usually be line graphs because the data is continuous.
- When you are graphing percentages of a distribution a pie chart would be suitable.
- When you have two variables, such as marks in a Maths test and marks in a Science test, then a scatter diagram would be the one to use.
The other thing you need to remember is that all graphs need ‘SALT’. Make sure you remember the following information:
S = Scale
A = Axes
L = Labels
T = Title