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Bias in machine learning


HireView is a startup that claims to speed up the process of interviewing job candidates. A candidate submits a video answering interview questions and HireView analyzes the video with a machine learning algorithm.
The algorithm scores the candidate on various aspects of their personality, such as "willingness to learn" and "personal stability". HireView engineers trained the algorithm on a data set of past videos that were scored by employers and psychologists.
In a test of the algorithm, HireView engineers discover that the algorithm always gives lower scores to people who speak more slowly.
What is the most likely explanation for the algorithm's bias?
Choose 1 answer: