A statistics professor asked students in a class their ages. Based on this information, the professor states that the average age of all the students in the university is 24 years. This is an example of
A) an observational study.
B) descriptive statistics.
C) an experiment.
D) statistical inference.

Question

Quizplus · Accepted Answer

The professor is making a generalization about the average age of all students in the university based on the ages of students in one class, which is an example of statistical inference.

A Statistics Professor Asked Students in a Class Their Ages