Assume you are an Amazon engineer. The review scores of Amazon items are sometimes biased, because people usually give a score only if they strongly like it or strongly dislike it. How would you know if the review score of a given item is biased or not?
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Answer Posted / Abhishek Kumar Verma
To determine whether the review score of a given item is biased, I would first analyze the distribution of ratings to check for extreme skew towards either positive or negative scores. If the majority of ratings are concentrated at the extremes (either 1 or 5 stars), it could indicate a bias in the data. Additionally, I would compare the review scores of similar items to see if the biased item's score deviates significantly from the norm. Lastly, I would consider conducting surveys or focus groups to gather more context about user satisfaction with the item.
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