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Questions and Answers
What is the purpose of data cleaning?
What is the purpose of data cleaning?
- To create duplicate data within a dataset
- To visualize data through common graphics
- To add more data to a dataset
- To fix incorrect or incomplete data within a dataset (correct)
What is data visualization?
What is data visualization?
- The process of removing incomplete data within a dataset
- The representation of data through use of common graphics (correct)
- The process of adding more data to a dataset
- The process of fixing incorrect data within a dataset
What is the difference between data preprocessing and data cleaning?
What is the difference between data preprocessing and data cleaning?
- Data preprocessing involves removing data while data cleaning involves adding data
- Data preprocessing involves transforming data while data cleaning involves fixing data (correct)
- Data preprocessing involves visualizing data while data cleaning involves organizing data
- There is no difference, they are the same thing
