称为均数的标准误 standard error of mean ; SEM
为均数的标准误 standard error of mean
数据为非均衡面板数据 unbalanced panel date
平均数为神经元密度 ND ; neuronal density
取平均数为神经元密度 neuronal density
作为平均数 on an average
在1975-76赛季至1990-91赛季的16个赛季中，NBA的抢断王们有九个赛季抢断数为场均3个或者更多的（NBA从1973-74年开始记录抢断数据）。
The N.B.A.’s leader in steals averaged three or more a game in 9 of 16 seasons from 1975-76 to 1990-91 (N.B.A. records of steals are kept only from 1973-74 on).
将所有的研究的数据合成，对于分类变量效应指标为风险比，对于连续型变量效应指标为加权均数差，根据研究样本的大小来加权。
Data were pooled across studies, and relative risks for categorical outcomes and weighted mean differences for continuous outcomes, weighted according to study sample size, were calculated.
结果表明：以全蛭石为移栽基质的脱毒试管苗成活率可达98．33％，植株生产状态最优，平均株高、发根数、根长几项指标均高于其它移栽基质。
The results show that:Success rate of virus-free seedling transplanted into Vermiculite was 98.33%, plant height, root number, root length of the plants in Vermiculite than those in the other medium.
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