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when do we use pie-chart and bar graph chart model
We use Bar graphs to show numbers that are independent of each other.Pie charts are used to show you how a whole is divided into different parts.
What is an example of the Bar graph
Example of the Bar graph would be data that might include things like the number of people who preferred each of Chinese takeaways, Indian takeaways and fish and chips.
What is an example of the Pie chart
An example of the Pie graph would be if I want to show how a budget had been spent on different items in a particular year.
Are there other kinds of graphs
There is the Line graphs show you how numbers have changed over time. They are used when you have data that are connected, and to show trends.

Question: Any other
Self-contained rewrite: Any other kind of graphs