《医学统计学》第A页

abscissa横坐标absence rate缺勤率absolute number绝对数absolute value绝对值accident error偶然误差accumulated frequency累积频数alternative hypothesis备择假设analysis of data分析资料analysis of variance(ANOVA)方差分析arith-log paper算术对数纸arithmetic mean算术均数assumed mean假定均数arithmetic weighted mean加权算术均数asymmetry coefficient偏度系数average平均数average deviation平均差