A simple random sample from a process (an infinite population) is a sample selected such that _____.
A) each element selected comes from the same population
B) each element is selected independently
C) each element selected comes from the same population and each element is selected independently
D) the probability of being selected changes

Question

Quizplus · Accepted Answer

A simple random sample is a sample in which each element is selected independently and comes from the same population. Therefore, option C is the best choice. Option A is not as precise as it does not specify independence. Option B is missing the requirement of the elements being from the same population. Option D is incorrect as the probability of selection should remain constant throughout the process.

A Simple Random Sample from a Process (An Infinite Population)