Technical Screen

Temperature Models, Interpolation, and Streaming Regression

CitadelData Scientist · Technical Screen · Apr 2026

First question Background You are given daily temperature data for P towns and daily temperature data for New York City over the same N days. Write functions to answer several questions. Part One — five questions Q1: Which place, either one of the towns or New York City, has the greatest temperature variation, measured by standard deviation? Q2: When Town2's temperature is between 90 and 100 degr…

Shared by a candidate · reported Apr 2026. Interview formats change; use it as a guide, not a script.