NO.PZ202109130200004001
问题如下：
Calculate the sample variance of the dependent variable using information in the table
选项：
解释：
The sample variance of the dependent variable is the sum of squares total divided by its degrees of freedom (n-1=5-1=4, as given). Thus, the sample variance of the dependent variable is 95.2 + 4= 23.8
如果题目改为求 variance of the independent variable 该怎么计算呢
