Drop year to filter shelf and select from 2000.
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Drop Total injuries field to rows, go to Analysis -> Aggregated Measures (Untick this, it will disaggregate the total injuries field.
Click on Show Me, and select Box and whisker Plot.
IQR = Upper hinge - Lower hinge
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Here IQR = 32 -2 = 30
Topic 1, Exam Pool B
Download the Dataset from here:
https://drive.google.com/file/d/1z7LPBQNPWHChteShl0QL3yu_JcvstLGl/view?usp=sharing
Use the above data set to answers the questions under Exam Pool B.

Only by using Calculated fields you can create a variable size bin.