Introduction – World Statistics Day is celebrated every five years on October 20 across the world to mark the importance of statistics in our daily lives. The main aim of this international day is to celebrate the process of collecting, examining, and interpreting a huge amount of numerical data for contributing to the improvement of the society.

Statistics is the discipline which concerns the analysis, presentation of data, interpretation, and collection. It is based on the planning of data collection in terms of the design of experiments and surveys. Statistics plays a significant role in the growth and development of a country. Statistics is a mathematical body of science which pertains to the interpretation, collection, analysis, and presentation of data.

There are two essential ideas that are involved in statistics such as variation and uncertainty. The variation and uncertainty fields are different fields that can be determined by using statistical analysis. Basically, these uncertainties are determined by the probability which plays a significant role in statistics. While variation is the measurement of spread or the collection of data for any organization.

Types of statistics – There are two types of statistics – Inferential statistics and descriptive statistics.

1. Inferential Statistics – This type of statistics uses measurements from the sample of subjects in the experiment for comparing the treatment groups and making generalizations about the huge population of subjects.
2. Descriptive Statistics – This type of statistics is the brief informational coefficients which summarize a given data set. It also provides simple summaries about the measure and sample of data.