Fully explain the following line items 1. Describe the possible Fully explain the following line items1. Describe the possible negative effects of proceeding directly to mine data that has not been preprocessed.2. What is an outlier? Why do we need to treat outliers carefully?3. Explain why it is not recommended, as a strategy for dealing with missing data, to simply omit the records or fields with missing values from the analysis. Engineering & Technology Computer ScienceCS 131
