Question

Which of the following is true of probability sampling?

A. It includes a large sample of respondents that voluntarily completes questionnaires on a regular basis so that researchers can assess changes in behavior and attitudes.
B.It is a hybrid of primary and secondary research conducted by a research company, spreading the cost across many clients to reduce the price.
C.It involves precise rules to select the sample so that each element of the population has a specific known chance of being selected.
D.It involves the use of arbitrary judgment by the market researcher to select a sample so that the chance of selecting a particular element of the population is either unknown or zero.

Answer 1

Probability sampling is a sampling technique where each member of a population has an equal and known chance of being selected, ensuring accurate and representative data.

Step-by-step explanation:

The question pertains to the concept of probability sampling, which is a method of sampling used by researchers to ensure every member of a population has an equal and known chance of being selected for the sample. When we compare this to convenience sampling or non-traditional sampling methods, it is clear that while these methods might be more pragmatic or cost-saving, they do not offer the same level of accuracy and representation that probability sampling does. Probability sampling methods, like simple random sampling, stratified sampling, and cluster sampling, ensure that predictions and inferences about the whole population can be made accurately from the sample data gathered.