QM110
Z-Score Percentile Game
Build your intuition for Z-scores and percentiles. Given a Z-score, estimate the percentile — or given a percentile, find the Z-score.
How It Works
- 10 rounds of business-themed scenarios
- Odd rounds: given a Z-score, pick the correct percentile
- Even rounds: given a percentile, pick the correct Z-score
- 4 multiple choice options per question
- Earn 10 points per correct answer (100 max)
- A normal curve visualization appears after each answer
Game Over!
You scored out of 100
Key Takeaway
Memorize these common Z-score / percentile pairs:
| Z-Score | Percentile |
|---|---|
| -2.00 | 2.3% |
| -1.96 | 2.5% |
| -1.00 | 15.9% |
| 0.00 | 50.0% |
| 1.00 | 84.1% |
| 1.96 | 97.5% |
| 2.00 | 97.7% |
| 2.33 | 99.0% |