- A collection of numbers or facts gathered for some specific purpose is called data.
- Interpreting the collected data gives us information.
- The data collected is organised and represented in pictorial form such as tables and graphs.
- A graph is a pictorial representation of data that gives a lot of information clearly.
(i) Bar graph
(iii) Pie chart etc.
- A pictograph has pictures or symbols to represent information.
- A pictograph has a title and gives the definition of the symbol.
- Pictographs enable us to compare information and understand facts better.
- A bar graph also helps us compare the information and understand it better. It is also called a column graph.
- Every bar graph must have,
(i) a title that explains the information given in the graph.
(ii) the scales on the horizontal and vertical axes.
(iii) labels on the axes.
- Circle charts are also used to represent data and compare information.
- In a circle graph, information is represented in different parts of the circle depending on the size of information.
(1-5): The graph shows the number of rubber bands each child has.