Keegan notices that his favorite 55-cent candy bar seems lighter than usual and so he checks the label and finds that it is lighter by ½ ounce.He decides to buy a larger candy bar instead and doesn't notice that the 99-cent candy bar also is lighter by ½ ounce.Keegan's behavior illustrates the fact that:

Question

Quizplus · Accepted Answer

The larger a weight is, the greater the change must be before one can detect a difference, which is consistent with Weber's Law. Keegan notices the difference in the smaller candy bar but not in the larger one because the relative change is less noticeable in the larger candy bar.

Keegan Notices That His Favorite 55-Cent Candy Bar Seems Lighter