The statistics is a science that allows to collect, process, analyze and describe datas with the aim of describing them clearly and concisely.
The statistics relative to a single variable is called univariate, relative to a set of data is called multivariate.
There are two types of statistics:
• Descriptive Statistics is used to describe and synthesize a set of data;
• Inferential Statistics is used to make induction and prediction on a set of data.
What it is useful?
Statistics is a way to understand the data that is collected about us and the world. It’s also about analyzing that data and producing some meaningful information.
Statistics are important because today we live in the information world and much of this information’s are determined mathematically by statistics help.
Range of applications:
The statistics is applied to several applications on the real life, as for example:
- social statistics,
- medical statistics,
- political science,
- demography (statistical study of populations),
- finance (statistical analysis of economic data),
- reliability engineering,
- etc..