Representing Data



Data is a large set of numbers, to understand them better we represent them pictorially to analyze, compare, arrive at deeper insights that can help in decision making, research etc.

Tally chart / frequency chart , Pictograph, Bar graph , Double bar graph , Histogram , Pie chart are few forms of representing data.

Lets understand data representation with some simple demonstration:

Shilpa was sitting at the side of the road waiting for her bus. While she waited she recorded the colour of 200 cars that drove past her. Below is a pie chart showing the number of each color  cars that drove past shilpa.