Question

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.

Answer

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