Types of diagram
Statistical information is often shown using graphs and other diagrams. These can be easier to read than lists of numbers.
You should be able to read and draw the following:
The type of graph you use depends on the type of data you want to represent.
Examples
- Data values which can only take certain values, often whole number values, eg shoe sizes, number of brothers and sisters. is best represented using bar charts.
- Data values that can take any value (not constrained to certain specific values), eg length of foot, body mass of newborn babies. data, for example temperature graphs, would usually be line graphs because the data is .
- When you are showing percentages or dividing up a total amount 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 鈥楽ALT鈥. Make sure you remember the following information:
S = Scale
A = Axes
L = Labels
T = Title