皮皮学，免费搜题
登录
搜题
【多选题】
关于抽样误差叙述正确的是A.
能够被控制和消除
B.
增加样本量不能减小抽样误差
C.
改进抽样方法使样本更具代表性可以减小抽样误差
D.
选择变异程度小的研究指标可以减小抽样误差
E.
要判断两样本数据之间的差异是否由抽样误差引起,需要进行假设检验
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】question break experience finish difficulty finally place challenge success lose It's a great _____that she has finished all the courses at the college.
【单选题】M: Cindy, have you finished your term paper? W: Finally I have done nothing else this week but type it. What does the woman say about the term paper?
A.
She will type it next week.
B.
It took her an entire week to type it.
C.
She still hasn't finished it.
D.
She did nothing about it.
【判断题】Victoria became Empress of India by taking over its control from the East India Company.
A.
正确
B.
错误
【单选题】In Victoria, Australia, in 1850, miners became with the high cost of mining licenses and restrictions on their right to search for gold.
A.
amazed
B.
confused
C.
irritated
D.
puzzled
【单选题】She finally finished her project after many long nights and a lot of hard work.
A.
Loose
B.
Periodic
【简答题】The professor gave orders that the test ________ before 5:30. A be finished B will be finished C will finish D shall finish 2. He was severely ill, _____ he had to lie in bed. A as much as that B ...
【简答题】Complete the sentences with the following verbs persuaded refused explained insisted threatened complained 1 The workers____to go on strike unless they received a pay rise 2 Despite the cold weather,...
【简答题】Please write down the name and category of this basic structure
相关题目：