Along with inferential statistics, it is one of the two major divisions that make up mathematical statistics. It was developed by F. Galton, K. Pearson, and others. Its main purpose is to describe the properties of observed statistical populations, and the populations observed are real, concrete populations (for example, the population of Japan as of a certain month and year), and their characteristics are understood through large-scale observation. In addition, statistical analysis such as frequency distribution, average, variance, time series, and correlation are used to describe the characteristics. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
推測統計学 (推計学) とともに数理統計学を形成する2大区分の一つ。 F.ゴルトンや,K.ピアソンなどによって発展した。観察された統計的集団の性質を記述することをおもな目的とし,観察される集団は現実的具体集団 (たとえば何年何月現在の日本の人口) であって,その特性の把握には大量観察が支柱となる。またその特性の記述にあたっては,度数分布,平均,分散,時系列,相関関係といった統計解析が用いられる。
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