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Level 6 · 👑 WORLD EXAM · ◆◆◆ · ~12 min

Simple Regression Exam

Simple Regression Exam

"One outcome, one regressor, one line — prove you can fit it, read it, score it, and reshape it."

the model and E(u|x)=0OLS slope and interceptR² and goodness of fitlogs and elasticities
🚀 You're jumping ahead. This builds on Logs, Elasticities & Functional Form — but play it now and you'll still earn full XP. If it feels steep, those make a gentler on-ramp.

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.