【多选题】systematic sampling 又称为:
【判断题】广义的税法是指国家立法机关或其授权指定的税收法律。
【简答题】听下面一段对话,回答第1-3小题。 1. What is the probable relationship between the speakers? A. Friends B. Classmates C. Co-workers 2. What does the man like to do? A. To cycle. B. To garden. C. To climb mountains. 3...
【多选题】Which of the following statement about systematic sampling is/are true?
A.
Sample members are selected from the sampling frame according to a random starting point and a fixed, periodic interval.
B.
The interval, called the sampling interval Kth, is calculated by dividing the population size N, by the desired sample size n. Kth=N/n
C.
The starting point can be obtained in a lottery method.
D.
The starting point can be obtained by using a random number table.
E.
It is a method belonging to non-probability sampling.
【单选题】既可以分割冲突域又可以分割广播域的设备是
【判断题】歌德电子书借阅机后台统计网址gede.5reader.com?
【单选题】The essence of systematic sampling is that:
A.
Each element of the population has an equal chance of being chosen.
B.
Members of various strata are selected by the interviewers up to predetermined limits.
C.
Every nth item of the population is selected.
D.
Every element of one definable subsection of the population is selected.
【单选题】从管理信息系统软件结构的角度出发,下列说法错误的是( )