Data analysts ask, “Why?” five times in order to get to the root cause of a problem.

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1. Internal data is more reliable because it’s clean. 4. Internal data is more reliable because it’s clean. 1 / 1 point True False ✓ CorrectInternal data is more reliable because ... Read more...
2. 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. 1. Fill in the blank: A preference in favor of or against a person, group of people, or thing is ... Read more...
3. To reduce clutter, a data analyst hides cells that contain long, complex formulas. To view the formulas again, the analyst will need to adjust the spreadsheet sharing or encryption settings. 8.To reduce clutter, a data analyst hides cells that contain long, complex formulas. To view the formulas again, the analyst ... Read more...
4. He asks: How would you write a query that retrieves only data about people with the last name Hassan from the Clients table in our database? 9. Scenario 2 continued Next, your interviewer wants to better understand your knowledge of basic SQL commands. He asks: How ... Read more...
5. Fill in the blank: Data _____ refers to the accuracy, completeness, consistency, and trustworthiness of data throughout its life cycle. 1. Fill in the blank: Data _____ refers to the accuracy, completeness, consistency, and trustworthiness of data throughout its life ... Read more...
6. They want to create employee identification numbers (IDs) in column D. The IDs should include the year hired plus the last four digits of the employee’s Social Security Number (SS#). What function will create the ID 20093208 for the employee in row 5? 5. A data analyst in a human resources department is working with the following selection of a spreadsheet:   A ... Read more...