Question

What is Probability Sampling? Group of answer choices .

a. is a technique in which every unit in the population has a chance (non-zero probability) of being selected in the sample, and this chance can be accurately determined. Sample statistics thus produced, such as sample mean or standard deviation, are unbiased estimates of population parameters, as long as the sampled units are weighted according to their probability of selection.

b.is a technique where all possible subsets of a population (more accurately, of a sampling frame) are given an equal probability of being selected.

c.is a technique where the sampling frame is ordered according to some criteria and elements are selected at regular intervals through that ordered list.

Answer 1

Probability sampling is nothing but a technique in which a sample is drawn from the population where every unit possesses the probability of getting selected in the sample so that standard deviation and mean etc have the chance of getting selected where the sample units are actually weighted with respect to the probability of selection on the whole. In this regard

(a) is the answer as it perfectly captures the definition

probability sampling is not based on subsets but on each individual unit and there is no separate criteria to select the sample in the probability sampling method which tells that

(b,c) are wrong answers to this question