If it is being used to make inferences about a population, a good statistic (or estimator) should
A)Be accurate and precise.
B)Show correlation.
C)Always equal the population parameter.
D)All of the above.

Question

Quizplus · Accepted Answer

A good statistic or estimator, when used to make inferences about a population, should be both accurate and precise. Accuracy refers to how close the estimator's average is to the true population parameter, while precision refers to how much the estimator's values vary from each other. Correlation is not a necessary characteristic of a good estimator, and an estimator does not always equal the population parameter but should aim to estimate it as closely as possible.

If It Is Being Used to Make Inferences About a Population