A researcher records the change in weight (gained or lost)during the first semester of college for each individual in a group of 25 freshmen,then calculates the average change in weight.The average is an example of a _______.
A)parameter
B)statistic
C)variable
D)constant

Question

Quizplus · Accepted Answer

The average change in weight is calculated from the sample of 25 freshmen, so it is an example of a statistic. A parameter would refer to the average change in weight for all freshmen, which would require data from the entire population of freshmen. A variable refers to the characteristic being measured (in this case, change in weight), and a constant is a fixed value.

A Researcher Records the Change in Weight (Gained or Lost)during