问题如下：
A simple random sample refers to each individual of the population has:
选项：
A.the different probability of being chosen compared to the other member in the sample.
B.the same probability of being chosen compared to the other member in the sample..
C.a 1% chance of being chosen .
解释：
B is correct.
A simple random sample is a subset that each individual of the population has an equal (same) chance to be chosen. Only in such condition that there are 100 elements in the population, choice C would be correct.
这一题。。。没看懂题目。。。也没看懂答案。。。。。。老师求讲解。。。
