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INT303 Big Data Analytics - Final Exam: Question 3: Data Grammar

INT303 Big Data Analytics - Final Exam: Question 3: Data Grammar

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3. [Data Grammar] Following is a preview of the DataFrame df. The header of the DataFrame contains x,y,z. This DataFrame also includes some missing values in NaN. CourseNana.COM

(a) What is data cleaning? State the reasons why data cleansing is critical to the big data analysis process. (6 Marks) CourseNana.COM

(b) What are the expected outcomes of the following command? please fill in the blank. CourseNana.COM

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