Variance Var(X) = E[(X - μ)²] = E(X²) - [E(X)]² — IITM BS previous year questions

Variance Var(X) = E[(X - μ)²] = E(X²) - [E(X)]² is part of Variance and Standard Deviation (L10.3 - L10.4), Week 10 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.