IQR = Q3 - Q1 - resistant measure of spread — IITM BS previous year questions

IQR = Q3 - Q1 - resistant measure of spread is part of Interquartile Range and Five-Number Summary (L3.5), Week 3 in Statistics 1. Prasnya files every IIT Madras BS previous year question from this subtopic here, each one with a worked explanation. Take the whole set as a timed mock and you get accuracy, pacing and per-question analysis back.