Collection of data

Collection of data

Collection of Data

Our world is becoming more and more information oriented. Every part of our life utilizes information in one form or another. So, it becomes essential for us to know how to extract meaningful information from such data. The extraction of meaningful information is studied in a branch of mathematics called Statistics.

This involves the study of the collection, analysis, interpretation, presentation, and organization of data. In other words, it is a mathematical discipline to collect, summarize data.

Types of data on the basis of the collection of data

Primary data: It is the data that is collected by a researcher from first-hand sources, using methods like surveys, interviews, or experiments. For example, The following data is collected by a student for his/her thesis for the research project.

• Height of 10 students in your class.

• Number of absentees in each day in your class for a month.

• Number of members in the families of your classmates.

• Height of 10 plants in or around your home.

Secondary data: It is the data that has already been collected by someone, and then it is updated, tailored or modified for a specific purpose.

For example, in a school, the class-teachers of respective sections record attendance on a daily basis.

This data recorded by the class- teacher is an example of primary data. On a given day, the principal of the school asks for the attendance of all students of each section, to collate the total number of students present in the school on a given day.

This data collected by the school principal is an example of secondary data.

Data Presenting for Clearer Reference

Imagine the statistical data without a definite presentation, will be burdensome! Data presentation is one of the important aspects of Statistics. Presenting the data helps the users to study and explain the statistics thoroughly. We are going to discuss this presentation of data and know-how information is laid down methodically. 

In this context, we are going to present the topic - Presentation of Data which is to be referred to by the students and the same is to be studied in regard to the types of presentations of data.