A study indicates that in general the more fruit students eat before a test,the better they do on the test.However,beyond a certain point,the more fruit students eat,the worse they do on the test.Thus,the relation between amount of fruit eaten and test performance is an example of
A)a positive linear correlation.
B)a curvilinear correlation.
C)a negative linear correlation.
D)no correlation.

Question

Quizplus · Accepted Answer

The description indicates that there is a correlation between the amount of fruit eaten and test performance, but it is not a simple positive or negative linear relationship. Instead, there is an optimal amount of fruit that leads to better test performance, and beyond that point, increasing fruit consumption leads to worse performance. This type of relationship is referred to as curvilinear correlation. Therefore, the best choice is B, curvilinear correlation.

A Study Indicates That in General the More Fruit Students