Sample mean as an estimator for population mean — IITM BS previous year questions

Sample mean as an estimator for population mean is part of Estimating Mean, Variance and Proportion, Week 7 in Statistics 2. 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.