Test Your Intermediate Data Skills

• 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)

• 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

• 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