In a representative sample,
A)every member of a population is surveyed.
B)every member of the population has an equal probability of being selected to be surveyed.
C)the method of selecting the sample ensures that it includes a representative from each of the key groups in the population.
D)representatives from the major groups in the population help select the sample.

Question

Quizplus · Accepted Answer

In a representative sample, every member of the population has an equal probability of being selected to be surveyed. This ensures that the sample is representative of the population as a whole. Option A is incorrect because it would be logistically difficult and often impossible to survey every member of a population. Option C is a potential method of selecting a representative sample, but it is not the only one. Option D is incorrect because representatives from major groups may not necessarily have the best understanding of what makes a sample representative.

In a Representative Sample