题目内容

关于选择样本的注意事项，描述错误的是

A. 样本量越大越好
B. 严格遵循纳入标准
C. 样本的代表性要强
D. 按随机原则选取样本

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更多问题

以下选项不属于样本含量常用估计方法的是

A. 经验法
B. 计算法
C. 查表法
D. 实验法

以下选项不属于概率抽样方法的是

A. 单纯随机抽样
B. 系统抽样
C. 分层抽样
D. 目的抽样
E. 配额抽样

抽样的原则是：保证样本的、选取有的样本。

[音频]3. A) Thefts of snowmobile dogs in Alaska.B) A series of injuries to snowmobile drivers.C) Attacks on some Iditarod Race competitors.D) A serious accident in the Alaska sports event.4. A) He stayed behind to look after his injured dogs.B) He has won the Alaska Iditarod Race four times.C) He received a minor injury in the Iditarod Race.D) He has quit the competition in Alaska for good.