Pinterest Statistics & Math Interview Questions
Practice the exact questions companies are asking right now.
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"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."
"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."
Explain BLS vs CLS; compute t-stats
Part A — Concepts: Define Brand Lift Study (BLS) vs Conversion Lift Study (CLS) in ads measurement. List key bias/variance sources for each (e.g., non...
Design rigorous A/B test and causal analysis
Experiment Design and Causal Inference: Multi-part Problem Context: You are designing a high-traffic web A/B test on a binary conversion metric. Answe...
Estimate Highway Billboard Impressions Using Traffic Data
Estimating Billboard Reach and Impressions Scenario An out-of-home (OOH) advertising team wants to estimate both reach (unique people who saw the ad a...
Estimate billboard reach and impressions
Digital Billboard: Weekly Reach, Impressions, and Store-Visit Attribution Context You are estimating the performance of a single digital billboard bes...
Analyze survey with gender imbalance
Scenario You ran a user survey to measure satisfaction with a new product feature. Each respondent reports: - gender ∈ {female, male} - satisfaction (...
Determine Appropriate Statistical Test for Comparing Means
A/B Test: Active Minutes After Two Weeks Scenario You ran a two-week A/B experiment on a new algorithm. The primary metric is user active minutes. Ass...