题目内容
（请给出正确答案）
What makes traditional surveys unscientific according to the second paragraph？
A．The sampling is not made strictly randomly.
B．The interview has to be conducted face-to-face.
C．Improper questions are often included in a survey.
D．Selection of respondents is often a matter of personal decision.
安装简答题APP，拍照搜题省时又省心！
更多“What makes traditional surveys…”相关的问题
A、the ground on which the speaker and the hearer meet
B、the very information that is to be imparted to the hearer
C、the point of departure in a sentence
D、the goal of discourse
A、nations that populations below ten million people.
B、nations with per capita income levels below $500 per year.
C、nations that are smaller than their major trading partners.
D、nations that are price takers, too small to affect through their own supply or demand
A. budget
B. plan
C. risk
D. contract
When there is measurement errors in
, usually the OLS estimator is inconsistent.
Let
be the estimated residual from the OLS estimation.
’s are independent.
A、to make more land for farming
B、to make profits
C、to construct buildings
D、to burn for heating
. In an experiment, we observed 4 successes, then an estimate of 
= .
= .(correct to the third decimal place)
为了保护您的账号安全，请在“简答题”公众号进行验证，点击“官网服务”-“账号验证”后输入验证码“”完成验证，验证成功后方可继续查看答案！
微信搜一搜
简答题
微信搜一搜
简答题
如搜索结果不匹配，请 
