题目内容

There is a decreasing number in applying for American universities nowadays.

A. 对
B. 错

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The 72-year-old gentleman finally chose to learn Chinese.

A. 对
B. 错

SAT, the abbreviation for “Scholastic Aptitude Test”, refers to a test taken by high school students who want to go to a college or university in the US.

A. 对
B. 错

抽样误差的影响因素有

A. 被调查总体各单位标志值的差异程度
B. 抽取的调查个体的数目
C. 抽样调查的组织方式
D. 抽样时间

影响样本量大小的因素主要有( )

A. 总体的数目
B. 抽样误差
C. 资源条件
D. 抽样方法

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