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Top Graviton Quant Interview Questions with Detailed Solutions

In this article, we’ll walk through two popular quant interview questions from Graviton: a thorough time series forecasting case study and a classic probability puzzle. Each question is solved in detail, with concepts explained and solutions justified—just as you would in a real interview.

You are given three years of hourly measurements from a sensor. Your goal is to forecast the next 24 hours. You are given no information about the underlying process. Walk me through your analysis from the moment you receive the data until you are ready to build a forecasting model.

The first step with any dataset is to explore and visualize the data to understand its properties and spot any obvious issues.