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本刊使用的统计学符号,请作者按GB 3358-82《统计学名词及符号》的有关规定书写,常用的如下:①样本的算术平均数用英小写x,不用大写X,也不用Mean或M(中位数仍用M);②标准差用英文小写s不用SD;③标准误用英文小写Sx,不用SE;④t检验用英文小写t;⑤F检验用英文大写F;⑥卡方检验用希文小写x~2;⑦相关系数用英文小写r;⑧自由度用希文小写r;⑨概率用英文大写P(P值前应给出具体检验值,如t值、x~2值、q值等);⑩样本数用英文小写n。以上符号均为斜体,请作者注意并遵照执行。
The statistical symbols used in this issue, please write according to GB 3358-82 “statistical terms and symbols” of the relevant provisions of writing, commonly used as follows: ① sample arithmetic mean lowercase x, not capital X, nor Mean or M (median still use M); ② standard deviation in English lowercase s without SD; ③ standard misuse English lowercase Sx, without SE; ④ t test in lowercase English t; ⑤ F test in English uppercase F; ⑥ chi-square test Greek lowercase x ~ 2; ⑦ correlation coefficient in lowercase English r; ⑧ degree of freedom in Greek lowercase r; ⑨ probability capitalized in English P (P value should be given before the specific test values, such as t value, x ~ q value, etc.); ⑩ sample number in lowercase n. The above symbols are in italics, please note and follow the implementation of the author.