Regression Explorer | GMBA 621 Week 3

📈

Master the Art of Prediction

Regression is one of the most powerful tools in predictive analytics. It answers the question: "How much?" — How much will this house sell for? How much will this customer spend? How much will sales increase?

📐 The Line

Regression finds the "best fit" line through your data

🎯 Intercept

Where the line starts — your baseline prediction

📈 Slope

How much Y changes for each unit of X

💯 R-squared

How much variation your model explains (0-100%)

Question 1 of 8

Score

Streak

0 🔥

Correct

0/8

Concept

💡 Key Insight

🏆

Challenge Complete!

Points

Accuracy

Best Streak

🎓 Key Takeaways for Class

Regression predicts continuous outcomes — "how much" questions like salary, sales, prices
The slope tells the story — each unit increase in X changes Y by the slope amount
R-squared measures fit — 0.70 means 70% of variation explained, 30% is "noise"
More variables ≠ better — simpler models are often more useful in business
Always translate to business — "$8,000 per year of experience" beats "β₁ = 8000"

📈 Regression Explorer