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Calculate 7-Day Rolling Average for Energy Consumption

AmazonData Scientist · Onsite
MediumData ScientistOnsiteCoding & Algorithms

Last updated

This question evaluates programming fluency in numerical data processing and algorithmic implementation for computing moving averages and handling edge cases in time-series sequences, and it applies to Data Scientist roles while falling under the Coding & Algorithms category.

Scenario

Hiring manager wants a quick coding exercise to verify programming fluency.

Question

Write a Python function that takes a list of daily energy consumption values and returns a list containing the 7-day rolling average; handle cases with fewer than 7 observations.

Hints

Use sliding window or collections.deque; O(n) time.