coefficient of association duties

例句：

1. 1.The coefficient of association between the two variables is 0.85.
   两个变量的相关系数是0.85。
2. 2.The coefficient of association indicates that the two variables are highly correlated.
   相关系数表明这两个变量高度相关。
3. 3.The coefficient of association was used to calculate the correlation between the variables.
   相关系数被用来计算变量之间的相关性。