Data visualization usually utilizes various visual variables, including shapes and colors to represent numerical values.
The tasks in the testing will ask you to estimate a numerical value that the centerd graphical representation measures, while referencing the left representation measures a minimum and the one on the right measures a maximum.
The minimum and maximum could be the values in global scope, which are 1 and 10000 during the testing; Or they could be the extreme values in a local scope. For instance, if you are estimating 3500, the minimum reference value in local scope is 1000 while the maximum reference value in local scope is 100000.
In each question, the numerical value you estimate and the time you spend on answering will be recored.
> The example below shows the testing logic: the bar on the left represents 1000 while the right one represents 10000. They are the extreme values in the range of 1000-10000. You'll attempt to estimate the value that the bar in the middle represents. In this case, the actual value is 7000.
