The concept of statistics
Statistics is the science that is concerned with collecting numerical data, then organizing, arranging, and analyzing it, with the aim of reaching certain results to clarify a phenomenon or a situation, or it is the science that is concerned with the way in which data and information are collected and converted into a numerical image, where data is collected through it on a regular basis, and as for the uses of statistics, they are many; such as its use in medical sciences, sociology, economics, industry, chemistry, sports, management, and many other fields
Stages of the statistical process
Statistical data is a set of raw data and information that represents the science of statistics, and is related to the phenomenon being studied. Data is classified into two main categories: [1] Qualitative data: is data that is not measured by numbers; such as social status (rich, middle, poor), and gender (male, female), and it includes ordinal data that can be arranged in ascending and descending order, and nominal data that cannot be arranged. Quantitative data: is data that is measured by numbers such as; numbers of workers, height, weight, … and others.
Statistical data sources
Sources from the field: where it is obtained directly by collecting information and investigating facts about a specific study itself; such as a questionnaire, for example. Official sources: where the specialized institutions are responsible for collecting statistical data on phenomena of different types; such as: health, scientific, and economic phenomena.
