Data Science Insights: Why the Mean Lies When Handling Messy Retail Data
This article reveals how the arithmetic mean distorts real-world retail data due to outliers, systematically comparing the robustness of median and IQR to guide practical data cleaning and decision-making.
入选理由:算术平均数对异常值极度敏感,易被大额订单或退货扭曲真实消费水平。

