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Level 13
· ◆◆◆ · ~12 min
The Classical Assumptions
The Classical Assumptions
"The short list of conditions that turns 'a line through some data' into an unbiased estimate you can trust — and which one is doing all the work."
MLR.1 linear in parametersMLR.2 random samplingMLR.3 no perfect collinearityMLR.4 zero conditional mean → unbiasednessMLR.5 homoskedasticity
A short lesson, then a quiz. ❤️×3 — a wrong answer costs a heart; finish with at least one left and the level is yours. Lose all three and you'll have to try again. Replay any time — XP and cleared levels are never lost.