Two branches: descriptive statistics vs inferential statistics — IITM BS previous year questions

Two branches: descriptive statistics vs inferential statistics is part of Introduction & Types of Data - Basic Definitions (L1.1), Week 1 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.