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Answer the following questions below: 1. Describe the possible negative effects of proceeding directly to mine data that has not been preprocessed. 2. Explain why

Answer the following questions below:

1. Describe the possible negative effects of proceeding directly to mine data that has not been preprocessed.

2. Explain why zip codes should be considered text variables rather than numeric.

3. What is an outlier? Why do we need to treat outliers carefully?

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