Course 3: Prepare Data for Exploration

data types and structures coursera quiz answers Weekly Challenge 1 1. A data analyst at a book publisher is working on an urgent report for executives. They are using only historical data. What is the most likely reason for choosing to analyze only historical data? Answers The project has a

database where data lives coursera week 2 quiz answers 1. Fill in the blank: A preference in favor of or against a person, group of people, or thing is called _____. It is an error in data analytics that can systematically skew results in a certain direction. Answers data collection

prepare data for exploration weekly challenge 3 answers 1. Primary and foreign keys are two connected identifiers within separate tables. These tables exist in what kind of database? Answers Metadata Primary Relational Normalized 2. When working with data from an external source, what can metadata help data analysts do? Select

prepare data for exploration weekly challenge 4 answers 1. Fill in the blank: File-naming conventions are _____ that describe a file’s content, creation date, or version. Answers general attributes frequent suggestions consistent guidelines common verifications 2. A data analytics team uses data about data to indicate consistent naming conventions for