In order for a researcher to be able to estimate accurately the parameters of a population from his or her sample, the sample must be
A) very large.
B) racially diverse.
C) low in variability.
D) random.

Question

Quizplus · Accepted Answer

A random sample ensures that each member of the population has an equal chance of being included in the sample, making it more likely to represent the population accurately. The size of the sample, racial diversity, and variability do not necessarily affect the accuracy of estimates if the sample is random.

In Order for a Researcher to Be Able to Estimate