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Statistics - Wikipedia

"Any practical statistical enquiry is concerned with the number of objects of a specified set (“individualsof a specifiedpopulation”) having various attributes. The general methods of analysis of the numerical information make up the subject of theoretical statistics. This subject can be divided into a “descriptive” part and a “predictive” part. The first part is concerned with such methods of characterising a sample as curve-fitting and the calculation of means and higher moments. In predictive statistics forecasts are made of the properties of a population, given a description of a sample."
Good (1950)

Taxonomy from a typical statistics textbook: