Week 3: The wonderful world of data
1. Fill in the blank: A business decides what kind of data it needs, how the data will be managed, and who will be responsible for it during the _____ stage of the data life
- analyze
- manage
- plan
- capture
2. The destroy stage of the data life cycle might involve which of the following actions? Select all that apply.
- Storing data for future use
- Shredding paper files
- Uploading data to the cloud
- Using data-erasure software
3. During the capture stage of the data life cycle, a data analyst may use spreadsheets to aggregate data.
- True
- False
4. Describe how the data life cycle differs from data analysis.
- The data life cycle deals with making informed decisions; data analysis is using tools to transform data.
- The data life cycle deals with transforming and verifying data; data analysis is using the insights gained from the data.
- The data life cycle deals with identifying the best data to solve a problem; data analysis is about asking effective questions.
- The data life cycle deals with the stages that data goes through during its useful life; data analysis is the process of analyzing data.
5. What actions might a data analytics team take in the act phase of the data analysis process? Select all that apply.
- Sharing analysis results using data visualizations
- Putting a plan into action to help solve the business problem
- Validating insights provided by analysts
- Finalizing a strategy based on the analysis
6. Fill in the blank: A formula is a set of instructions used to perform a specified calculation; whereas a function is _____.
- a predefined operation
- a question written by the user
- a particular value
- a computer programming language
7. Fill in the blank: To request, retrieve, and update information in a database, data analysts use a ____.
- calculation
- dashboard
- query
- formula
8. Structured query language (SQL) enables data analysts to communicate with a database.
- True
- False
9. You are in the plan stage of the data lifecycle for your current project. What action might you take during this stage?
- Decide what kind of data is needed.
- Use a formula to perform calculations.
- Validate insights provided by analysts.
- Shred paper files.
10. A data analyst is working at a small tech startup. They’ve just completed an analysis project, which involved private company information about a new product launch. In order to keep the information safe, the analyst uses secure data-erasure software for the digital files and a shredder for the paper files. Which state of the data life cycle does this describe?
- Manage
- Archive
- Destroy
- Plan
11. A data analyst is working at a small tech startup. On their current project they are in the analyze stage of the data life cycle. What might they do in this stage?
- Choose the format of their spreadsheet headings
- Determine who is responsible for managing the data
- Validate the insights provided by analysts
- Use a formula to perform calculations
12. Fill in the blank: Data analysis has six process steps whereas the data life cycle has six _____.
- data analytics tools
- steps
- stages
- key questions
13. What is the main difference between a formula and a function?
- A formula can be used multiple times in a spreadsheet; a function can only be used once.
- A formula begins with an equal sign (=); a function begins with an asterisk (*).
- A formula is a set of instructions used to perform a specified calculation; a function is a preset command that automatically performs a specified process.
- A formula is used to add or subtract; a function is used to multiply or divide.
14. What does a data analyst use to request information within a database?
- Calculation
- Dashboard
- Formula
- Query
15. Why is SQL the most popular structured query language? Select all that apply.
- SQL allows data analysts to use spreadsheets
- SQL is the most secure database on the market
- SQL is easy to understand
- SQL works with a wide variety of databases
16. A data analyst uses spreadsheets to aggregate data during the capture phase of the data life cycle.
- True
- False
17. Fill in the blank: The data life cycle has six _____ .
- data analytics tools
- process steps
- key questions
- stages
18. Fill in the blank: A query is used to _____ information from a database. Select all that apply.
- request
- retrieve
- visualize
- update
19. Structured query language (SQL) allows a data analyst to retrieve and request data from a database. What else is SQL used for?
- Visualizing data within a database
- The revising phase of the data life cycle
- Updating databases
- The sharing phase of the data life cycle
20. Fill in the blank: A business is determining who should be responsible for the data in their current data analysis project. This means that the company is in the ______ stage of the data life cycle.
- manage
- plan
- analyze
- capture
21. Fill in the blank: Shredding paper files and using data-erasure software would be actions taken by a data analyst in the _________ stage of the data lifecycle.
- Manage
- Plan
- Archive
- Destroy
22. Fill in the blank: Data analysis has six parts that are divided into distinct _____.
- process steps
- key questions
- data analytics tools
- stages
23. Fill in the blank: In the _____ phase of the data analysis process, a data analytics team might validate the insights provided by analysts.
- process
- share
- analyze
- act
24. In data analysis, a predefined operation is known as what?
- A function
- A formula
- A particular value
- A predefined statement
25. In the course of their current project, a data analyst uses a query to retrieve and request information. Which of the following is a third option they can use a query for?
- Visualizing data
- Updating data
- Deleting data
- Collecting data
26. In which stage of the data life cycle does a business decide what kind of data it needs, how the data will be managed, and who will be responsible for it?
- Manage
- Plan
- Capture
- Analyze
27. A company takes the insights provided by its data analytics team, validates them, and finalizes a strategy. They then implement a plan to solve the original business problem. This describes the share step of the data analysis process.
- True
- False
28. In the course of their current project, a data analyst uses a query to retrieve and request information. Which of the following are options the analyst can use a query for? Select all that apply.
- Updating data
- Collecting data
- Visualizing data
- Deleting data
29. In the plan stage of the data life cycle, what decisions would a data analyst make? Select all that apply.
- Who will be responsible for the data
- How the data will be managed
- What kind of data is needed
- How the data will be analyzed
30. In the analyze phase of the data life cycle, what might a data analyst do? Select all that apply.
- Use spreadsheets to aggregate data
- Use a formula to perform calculations
- Create a report from their data
- Chooses the format of their spreadsheet headings
31. Fill in the blank: In the act phase of the data analysis process, a company may need to _____ the insights of the data analysis team.
- accomplish
- revise
- validate
- calculate
32. In data analysis, a function is a predefined operation whereas a formula is a set of instructions used to carry out a specific calculation.
- True
- False
33. A data analyst has finished an analysis project that involved private company data. They erase the digital files in order to keep the information secure. This describes which stage of the data life cycle?
- Plan
- Destroy
- Archive
- Manage
34. Fill in the blank: Using a formula to perform calculations, creating a report from their data, and using spreadsheets to aggregate data would all be actions carried out in the ________ stage of the data lifecycle.
- manage
- plan
- analyze
- capture
35. Fill in the blank: In the _____ phase of the data analysis process, a data analytics team might validate the insights provided by analysts.
- process
- act
- analyze
- share
36. Fill in the blank: Structured query language (SQL) enables data analysts to _____ information from a database. Select all that apply.
- retrieve
- visualize
- request
- update
37. The planning stage of the data life cycle is when a business decides what kind of data it needs, how the data will be handled, and who will be responsible for it.
- True
- False
38. A company takes insights provided by its data analytics team, validates them, and finalizes a strategy. They then implement a plan to solve the original business problem. This describes which step of the data analysis process?
- Analyze
- Act
- Process
- Share
39. A data analyst wants to retrieve information from a database. Select the correct tool from the data analyst’s toolkit.
- Spreadsheet
- Visualization
- Query
- Dashboard
40. A data analyst is working at a small tech startup. On their current project they are using spreadsheets to aggregate data. In which stage of the data life cycle is this analyst?
- Analyze
- Manage
- Plan
- Archive
41. A data analyst uses a spreadsheet function to aggregate data. Then, they add a pivot table to show totals from least to greatest. This would happen during which phase of the data life cycle?
- Analyze
- Manage
- Capture
- Plan
42. A business analyst recently completed a project that their company has decided to use to solve a larger business problem. What step is this in the data analysis process?
- Process
- Act
- Analyze
- Share
43. Data analysts use queries to analyze information within a database.
- True
- False
44. What is the primary purpose of the destroy stage of the data life cycle?
- To keep information safe by eliminating records of it
- To validate the results of analysis.
- To use functions for investigating the data.
- To determine who is responsible for managing the data.
45. In data analysis, a preset command is known as what?
- A formula
- A particular value
- A function
- A predefined statement
46. Which of the following is an example of why a data analyst may generate a query?
- Visualizing data
- Requesting data
- Collecting data
- Recording data
47. Fill in the blank: A function is a preset command, whereas a formula is _____.
- a set of instructions used to perform a specified calculation
- a particular value
- a computer programming language
- a predefined statement
48. Fill in the blank: Structured query language (SQL) enables data analysts to retrieve, update, and request information from a database. The tool they use to do this is called a _______.
- dashboard
- visualization
- query
- spreadsheet
49. The data life cycle deals with the stages that data goes through during its useful life; data analysis involves following a process to analyze data.
- True
- False
50. A set of instructions used to perform a specified calculation is known as what?
- A formula
- A predefined statement
- A function
- A particular value
51. In data analysis, a function is a preset command whereas a formula is a set of instructions used to carry out a specific calculation.
- True
- False
52. In the destroy phase of the data lifecycle, a data analyst might shred paper files.
- True
- False