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Data intuition & product sense
Framework → metrics → experiments → modeling cases → advanced
Why this sequence
Product-sense questions live or die on structure, not raw domain knowledge. Start with the project-intake and metric-design framework, practice big-tech product exemplars, then metric-trap cases and RCA, then applied modeling and ranking problems. Ends on Ads-team-specific depth.
37 questions ·
0 mastered ·
0 in review
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- 01 NewA Stakeholder Asks You to Run a Project — What Questions Do You Ask Them First?
- 02 NewIf You Could Only Choose One Metric to Evaluate a New Product, Which Would It Be?
- 03 NewFavorite Google Product — How Would You Improve It and Measure Success?
- 04 NewShould YouTube Add a Bonus to Creator Ad Revenue?
- 05 NewA/B Test Metric Selection — Change a Button's Color
- 06 NewEstimate the Lifetime Value (LTV) of a User or an Ad Click
- 07 NewIf You Had No Metrics for Google Docs, Which Five Would You Define First?
- 08 NewDesign a Metric for Bird Species Segregation in a Forest
- 09 NewCar X vs. Car Y Fuel Efficiency — Which Technology Saves More Gas?
- 10 NewCompare the Profit of Two Stores Near a School Gate
- 11 NewA Metric Suddenly Changed Overnight — What Would You Do?
- 12 NewWhy Do Customers Prefer the 4.9-Rated Product Over the 5.0-Rated Product?
- 13 NewSurvey with 4 Options — Which Is the Most Preferred, and Is It Significantly So?
- 14 NewDesign a Database Schema for a Video Company
- 15 NewGoogle Maps Jogging Route Recommendation — Experiment Design
- 16 NewGoogle Meet Enterprise Clients Complaining About Frequent Disconnections
- 17 NewYou Have 1000 Features and Want to Estimate Conversion Rate — What Do You Do?
- 18 NewPredict Remaining Phone Battery Life — Case Study
- 19 NewHow Would You Predict the Number of Views for a Video?
- 20 NewSpot the Modeling Mistakes
- 21 NewBias-Variance Tradeoff — What Do You Do When Your Model Is Much Better on Training Than Test?
- 22 NewWhen Does K-Means Fail? What Are the Estimation Problems and How Do You Fix Them?
- 23 NewHow Would You Handle a Highly Imbalanced Dataset?
- 24 NewModel the Goal-Scoring Probability at Every Location on a Football Pitch
- 25 NewImplement Evaluation Metrics and Bootstrap CI (PR Curve + Percentage RMSE)
- 26 NewEvaluating an Ads CTR Prediction Model — Metric Selection, Traps, and Fixes
- 27 NewEvaluate a New YouTube Auto-Playlist Ranking Algorithm
- 28 NewSample Ratio Mismatch (SRM) — How to Detect, Diagnose, and Handle
- 29 NewHypothesis Testing with Only 20 Samples — What Do You Do?
- 30 NewMean vs Median — Which Is Better? Force a Choice.
- 31 NewWhy Divide by n − 1 in Sample Variance? (Bessel's Correction)
- 32 NewIs the Sample Standard Deviation an Unbiased Estimator of σ?
- 33 NewLinear Regression When You Have More Features Than Observations (m > n)
- 34 NewAd Auction Mechanics — Second-Price, First-Price, and the Role of Quality Score
- 35 NewFrom a 1% Query Sample, Estimate the Number of Singleton Queries
- 36 NewEstimate the Number of Distinct Queries from a 1% Sample
- 37 NewHow to Allocate K Human Reviews to Estimate ML Model Accuracy