【判断题】【消耗次数：1】
重复简单随机抽样的抽样平均误差小于不重复简单随机抽样的抽样平均误差。
①
正确
②
错误
参考答案：
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相关题目
【多选题】
简单随机抽样
①
试用于总体各单位呈均匀分布的总体
②
适用于总体各单位标志变异较大的总体
③
在抽样之前要求对总体各单位加以编号
④
最符合随机原则
⑤
是各种抽样组织形式中最基本最简单的一种形式
随机题目
【单选题】
In the wife’s eyes, his _____ to their marriage life is far from perfect.
①
requirement
②
commitment
③
participation
④
reflection
【单选题】
I think the private ownership of guns is a _______mistake.
①
wonderful
②
great
③
tragic
④
romantic
【单选题】
America has a lot of _______ weapons now.
①
aggressive
②
expensive
③
passive
④
expressive
【单选题】
My grandfather had suffered from cancer for two years. It was no surprise when I was told that he had _____.
①
passed off
②
passed away
③
passed by
④
passed over
【单选题】
Not only ______ our money, but we were also in danger of losing our lives.
①
we lost
②
lost we
③
we did lose
④
did we lose
【单选题】
We are going to have a singing party tonight. Would you like to join us?___________
①
I’m afraid not, because I have to go to an important meeting.
②
Of course not. I have no idea.
③
No, I can’t.
④
That’s all set.
【单选题】
Use daily writing to ______ your communication skills.
①
track
②
discharge
③
contract
④
enhance
【单选题】
The dean of the Philosophy Department requested that the visiting scholar ______ a lecture on the philosopher Sartre.
①
gave
②
give
③
would give
④
had given
【单选题】
It became harder for women married to diplomats(外交家) to _______ their own interests.
①
pursue
②
replace
③
absorb
④
convince
【单选题】
As a result of his hard work, he has gained ______ to the Beijing University.
①
access
②
commitment
③
opportunity
④
reward