Question

what does it mean when a part of the population is under - represented? choose the correct answer below. a. a part of the population is under - represented when their answers on a survey tend not to reflect their true feelings. b. a part of the population is under - represented when it is proportionally smaller in its population than in a sample. c. a part of the population is under - represented when it is proportionally smaller in a sample than in its population. d. a part of the population is under - represented when individuals selected to be in the sample who do not respond to the survey have different opinions from those who do.

Explanation:

Under - representation in sampling means that a subgroup in the sample has a proportion that is smaller compared to its proportion in the entire population. Option A refers to response bias, option B has the incorrect proportion relationship, and option D refers to non - response bias.

Answer:

C. A part of the population is under - represented when it is proportionally smaller in a sample than in its population.