1. Introduction to statistics

In our daily life, we have read about information in the form of tables, graphs from books, newspapers, television, etc. The information can be temperatures in cities, number of people living, weight of the students studying in a school, etc. These facts or information which are in numerical form is called as data.

The word "Data" is in plural form and is derived from the latin word "datum".

 

From these obtained data, we extract certain information. These extraction of information which leads to a new concept in mathematics called as "statistics".