Data Cleaning and Preparation · Quiz

Data Analytics: Foundations to Practice · Module Test: Data Cleaning and Preparation

Question 1 of 12

What does the widely cited '80/20' estimate describe in the context of a typical analytics project?

80% of results are typically wrong, 20% are correctRoughly 80% of project time goes to collection and cleaning, with 20% for analysis and interpretation80% of analysts prefer cleaning over analysis20% of all data is considered unstructured