A researcher who is interested in studying how humidity affects the eating behavior of rats obtains 25 rats to participate in a research study.The group of 25 rats is called a
A)statistic.
B)parameter.
C)sample.
D)population.

Question

Quizplus · Accepted Answer

The group of 25 rats represents a subset of the larger population of all rats that could potentially be studied. Therefore, the group of 25 rats is a sample. A statistic is a numerical summary of a sample (such as the mean or standard deviation), while a parameter is a numerical summary of a population (such as the true population mean or standard deviation).

A Researcher Who Is Interested in Studying How Humidity Affects