A simple random sample from an infinite population is a sample selected such that
A) each element is selected independently and from the same population.
B) each element has a 0.5 probability of being selected.
C) each element has a probability of at least 0.5 of being selected.
D) the probability of being selected changes.

Question

Quizplus · Accepted Answer

A simple random sample is a sample where each element is chosen independently and at random from the same population, ensuring that each element has an equal chance of being selected. Option B is only applicable for a Bernoulli random sample, Option C is not true as some elements may have a probability less than 0.5 of being selected, and Option D contradicts the definition of a simple random sample.

A Simple Random Sample from an Infinite Population Is a Sample