Hopper Senior Data Scientist – Air Candidate Assignment

4-part take-home for Hopper's Senior DS-Air role (about 1 hour total). Exercise 1: write a nearest-airport function using lat/long data. Exercise 2: analyze a Price Freeze A/B test (Champion vs. Challenger) with device-type and discount confounders. Exercise 3: design a numeric trip representation from search-session data and define a similarity metric. Exercise 4: define success and improvement metrics for Hopper's Price Drop feature.