四格表х2检验用于:
A.两个均数比较
B.两个率比较
C.率的统计描述
D.多个率的比较
E.以上都不对
下列何种情况不能用X2检验:
A.多个均数比较
B.多个率比较
C.构成比比较
D.拟合优度检验
E.关联性分析
When did Steve Jobs finally quit from the university?
After the first school year.
B. After the first six months.
C. After the first six months and another 18 months as a drop-in.
D. After 18 months as a drop-in.
What kind of person is his biological mother?
A woman who ran an orphanage.
B. A young, unwed college graduate student.
C. A lawyer.
D. Someone who had never graduated from college.
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