Connect to the "Significant Volcano Eruption" data source.

Explanation:

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