In a Physical Geography Course, the Average Score on the First

Multiple Choice

In a physical geography course, the average score on the first exam was 79 percent based on a sample of 48 students.This mean was calculated on the class grades to summarize overall performance.There are two other sections of the same class, but those students were not included in the calculation.The test average is a:

A) measure of variability.
B) statistic.
C) parameter.
D) mode.