NO.PZ2023062701000007
问题如下：
Which test is used to test for independence of two categorical variables?
选项：
A.
t-test
B.
F-test
C.
chi-square
解释：
A chi-square distributed test statistic is used to test for independence of two categorical variables.
我是不是搞反了。
chi square不就是X2 test？然后是test single的方差；
F test才是test 两个独立方差的吧？
