Question

Point out the correct statement.

(a) Nearly 80% of data analysis is spent on wrangling data

(b) Nearly 20% of data analysis is spent on data dredging

(c) Nearly 80% of data analysis is spent on the cleaning and preparing data

(d) None of the mentioned

I have been asked this question in an online interview.

I need to ask this question from Tidy Data topic in division Getting Data of Data Science

Answer 1

The correct option is (c) Nearly 80% of data analysis is spent on the cleaning and preparing data

To explain: Data cleansing is the process of detecting and correcting (or removing) corrupt or inaccurate records from a record set, table, or database.