Explanation:Data cleansing is the process of detecting and correcting (or removing) corrupt or inaccurate records from a record set, table, or database. 3. Which of the following is a trait of tidy data ?
A. each variable in one column
B. each observation in different row
C. one table for each kind of variable
D. None of the Mentioned
Answer:A
Explanation:Data cleansing is the process of detecting and correcting (or removing) corrupt or inaccurate records from a record set, table, or database. 3. Which of the following is a trait of tidy data ?
A. each variable in one column B. each observation in different row C. one table for each kind of variable D. None of the Mentioned
Explanation:The summary could be the sum of the observations, the number of occurrences, their mean value, and so on. 4. Which of the following package is used for tidy data ?