Explain the importance of data normalization in machine learning, and provide two examples of techniques used for normalization. Your response should contain at least 3 paragraphs. Paragraphs are separated with the markdown divider: ***. Highlight at least 2 sections in your answer with markdown, i.e. *highlighted section*. In your response, the word *normalization* should appear at least 3 times. At the end of your response, please explicitly add a postscript starting with *P.S.*

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