Notes for Data Handling

For data to be useful, it is very important to collect complete, accurate & relevant data.

After collection of data, it is necessary to represent data in a precise manner so that it is easily understood. Representation of data in a visual manner is known as its Graphical Presentation or simply, Graphs. Data can also be presented in the form of a table; however a graphical form is easier to understand. Consider the family of Mr. Khanna. They are very fond of eating ice-creams. Some like butterscotch, some like vanilla flavor, some like strawberry and the rest of them likes chocolate. Some demand cones & some of them demand cups. A child of VIII class decides to construct the graphs according to their amount of icecreams consumed. There are 7 ways of representing the data.

After collection of data, it is necessary to represent data in a precise manner so that it is easily understood. Representation of data in a visual manner is known as its Graphical Presentation or simply, Graphs. Data can also be presented in the form of a table; however a graphical form is easier to understand. Consider the family of Mr. Khanna. They are very fond of eating ice-creams. Some like butterscotch, some like vanilla flavor, some like strawberry and the rest of them likes chocolate. Some demand cones & some of them demand cups. A child of VIII class decides to construct the graphs according to their amount of icecreams consumed. There are 7 ways of representing the data.

Pictorial representation of numberical data, using picture symbol is known as a pictograph. Most business and industrial organizations use this method to represent their data.

denotes cones and

represents cups.

If we draw the pictograph, it will be in the above way where represents cone & represents cups.