Marc, a high school senior, was given an eighth-grade science exam and he scored 85%. Is this an accurate predictor of how well students in the eighth-grade science class will perform on the exam?

No, because Marc is not representative of the population in the eighth-grade class
No, because Marc scored too high on the test
Yes, because Marc scored high so the test is easy

Question

Marc, a high school senior, was given an eighth-grade science exam and he scored 85%. Is this an accurate predictor of how well students in the eighth-grade science class will perform on the exam?

 No, because Marc is not representative of the population in the eighth-grade class
 No, because Marc scored too high on the test
 Yes, because Marc scored high so the test is easy

mhchen · Answer

Marc is a senior, NOT an eighth-grader.
The question asks if Marc's exam result shows how eighth-graders would do on the test.

What do you think? 

If I asked a monkey to take an 8th-grade history test, and the monkey fails, does that mean that all 8th-graders would fail as well?