Instruction: Describe a method for normalizing column values in a DataFrame to a standard scale.
Context: This question evaluates the candidate's knowledge on data preprocessing techniques, particularly normalization, to prepare data for machine learning models or statistical analysis.
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Normalization is a technique used to adjust the scale of data attributes. One common method is the Min-Max scaling, where we rescale the feature to a fixed range, usually 0 to 1. The formula for Min-Max normalization is as follows:
(X_{norm} = \frac{X - X_{min}}{X_{max} - X_{min}})...
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