Question

Carol, a student in an advanced statistics course, was given an algebra test and she scored 80%. Is this an accurate predictor of how well students in the algebra class will perform on the test? Why or why not?

Answer 1

We have the result of only one person, therefore this result is not a accurate predictor for an entire class.

In order to have a better predictor, we need more results to create a good sample, this way the estimative will be more accurate.

So the answer is NO, because the sample is too small (only one person).