A researcher goes to great lengths to ensure that the proportion of males and females in his study matches the proportion of males and females nationally. He is selecting a ________ sample.
A) representative
B) random
C) biased
D) controlled

Question

Quizplus · Accepted Answer

A representative sample is one that accurately reflects the characteristics of the population being studied. By ensuring that the proportion of males and females in his study matches the proportion in the national population, the researcher is attempting to create a representative sample.

A Researcher Goes to Great Lengths to Ensure That the Proportion