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数理统计离不开数理统计学符号和缩写。但是,在统计学书刊中,统计学符号和缩写的使用却相当混乱,比如,“样本方差(variance of a sample)”就有s~2,s~2,S~2,S~2,V,V等表示方式;“自由度(degrees of freedom)”就有v,f,f,df,d.f.,d.f.,DF,DF,D.F.,D.F.等符号和缩写。为了避免统计学符号和缩写的混乱,就必须遵守与统计学符号有关的国际标准,并统一统计学术语缩写的规范。 ISO 3534-1977《统计学——词汇和符号》规定了28个不同统计学术语的符号(部分符号见本期第122
Mathematical statistics can not be separated from mathematical statistics symbols and abbreviations. However, in statistical journals, the use of statistical symbols and abbreviations is rather confusing. For example, “variance of a sample” has s ~ 2, s ~ 2, s ~ 2, s ~ 2, , V and other means of expression; “degrees of freedom” have v, f, f, df, df, df, DF, DF, DF, DF and other symbols and abbreviations. In order to avoid the confusion of statistical symbols and abbreviations, it is necessary to comply with international standards related to statistical symbols and to unify the norms of abbreviations of statistical terms. ISO 3534-1977 “Statistics - Vocabulary and Symbols” stipulates the symbols of 28 different statistical terms (part of the symbols see the current section 122