108.25 MB
8 区域抽样、时间抽样和随机电话号码抽样【微信号：mmj4408】.mp42023-12-20
53.24 MB
7 分层抽样【微信号：mmj4408】.mp42023-12-20
41.15 MB
6 PPS抽样【微信号：mmj4408】.mp42023-12-20
84.23 MB
5 简单随机抽样和系统抽样【微信号：mmj4408】.mp42023-12-20
26.32 MB
4 抽样样式与非概率抽样【微信号：mmj4408】.mp42023-12-20
18.51 MB
3 抽样过程及相关概念【微信号：mmj4408】.mp42023-12-20
56.43 MB
2 抽样误差和非抽样误差【微信号：mmj4408】.mp42023-12-20
33.27 MB
1 抽样的概念和意义【微信号：mmj4408】.mp42023-12-20