Which of the following statements about sampling is correct?
A)Sampling is based on the principle that a sufficiently large number drawn from a population will be representative, regardless of whether the selection was random.
B)The survey results of a sample will be biased and therefore not reliable for formal research.
C)Sampling is a survey technique that eliminates the need for questioning 100 percent of the population.
D)All of the above are correct statements.

Question

Quizplus · Accepted Answer

Sampling is a technique to survey a portion of the population, and it can provide reliable results without surveying 100% of the population. The other two options are incorrect. A sufficiently large sample drawn from a population may not necessarily be representative if the selection is not random. The sample results can be reliable and unbiased if a random selection procedure is followed.

Which of the Following Statements About Sampling Is Correct