The Department Store Task

Free quizz - Assess your sense of stock and flow.

Based on the article " Why Don’t Well-Educated Adults Understand Accumulation?"
by M.Cronin, C.Gonzales and J.Sterman, 2006
Link to the paper on the MIT website

This exercice was part of a research study led by George Mason University , Carnegie Mellon University , and the MIT Sloan School of Management . It is a quick and amuzing way to assess your sensibility to the concept of accumulation.


Questionnaire

The graph below shows the number of people entering and leaving a store over a 30-minutes period.
Randomize the data


Please answer the following questions.
1. During which minute did the most people enter the store ?
Minute

2. During which minute did the most people leave the store ?
Minute

3. During which minute were the most people in the store ?
Minute

4. During which minute were the fewest people in the store ?
Minute