The Shifting Standard

A medium Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain

Python

Difficulty

medium

Seniority

L5

Problem

Given a list of batches (each a list of numbers), after processing each batch compute the running average of ALL numbers across ALL batches seen so far. Return the list of running averages (one per batch).

Summary

A benchmark in motion.

Practice This Problem

Solve this Python problem with real code execution. DataDriven runs your Python code in a real environment and grades it automatically.