Module 1: Organize data for more effective analysis
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In this post, I provide accurate answers and detailed explanations for Module 1: Organize data for more effective analysis of Course 5: Analyze Data to Answer Questions – Google Data Analytics Professional Certificate.
Whether you’re preparing for quizzes or brushing up on your knowledge, these insights will help you master the concepts effectively. Let’s dive into the correct answers and detailed explanations for each question.
Test your knowledge on understanding data analysis
Practice Quiz
1. You ask volunteers at a theater production which tasks they have already completed and add that data to a spreadsheet containing all required tasks. You will use the information provided by the volunteers to figure out which tasks still need to be done. This is an example of which phase of analysis?
- Organize data (into a dataset)
- Transform data
- Get input from others ✅
- Format and adjust data
Explanation:
This phase involves collecting information, feedback, or data from external sources. In this case, you’re asking volunteers about tasks they’ve completed and adding that information to your dataset. This is not about organizing or transforming data yet—it’s simply about gathering input to enhance your understanding of the current state of the tasks.
2. You are working with three datasets about voter turnout in your county. First, you identify relationships and patterns between the datasets. Then, you use formulas and functions to make calculations based on your data. This is an example of which phase of analysis?
- Transform data
- Organize data (into a dataset)
- Format and adjust data ✅
- Get input from others
Explanation:
The “transform data” phase involves analyzing and manipulating data to make it usable for insights. Identifying patterns and relationships, along with performing calculations using formulas and functions, are key components of data transformation. These activities prepare the data for deeper analysis and decision-making.
3. You are working with a dataset from a local community college. You sort the students alphabetically by last name. This is an example of which phase of analysis?
- Get input from others
- Organize data (into a dataset)
- Transform data ✅
- Format and adjust data
Explanation:
Sorting data, such as arranging students alphabetically by last name, is part of formatting or adjusting data. This phase ensures the data is organized in a specific, user-friendly structure, making it easier to access, analyze, and present. Unlike “transform data,” formatting doesn’t involve analytical changes but focuses on arrangement and presentation.
Test your knowledge on organizing data
Practice Quiz
4. Fill in the blank: A data analyst uses _____ to decide which data is relevant to their analysis and which data types and variables are appropriate.
- database references
- database normalization
- database organization ✅
- database relationships
Explanation:
A data analyst uses database organization to determine which data is relevant to their analysis and which data types and variables are appropriate. This involves structuring the database in a way that makes the data clear and accessible for analysis.
5. A data analyst wants to organize a database to show only the 100 most recent real estate sales in Stamford, Connecticut. How can they do that?
- The data analyst should filter out sales in Stamford, Connecticut, then sort the least recent sales at the top of their list.
- The data analyst should add a filter to return only sales in Stamford, Connecticut, then sort the least recent sales at the top of their list.
- The data analyst should filter out sale amounts in Stamford, Connecticut, then sort the highest sales at the top of their list.
- The data analyst should add a filter to return only sales in Stamford, Connecticut, then sort the most recent sales at the top of their list. ✅
Explanation:
To organize the database and display only the 100 most recent real estate sales in Stamford, Connecticut, the analyst needs to:
- Filter the data to include only sales in Stamford, Connecticut.
- Sort the data so that the most recent sales appear at the top.
This approach ensures the database shows only the desired information in the correct order.
6. You are working with a database table that contains customer data. The country column designates the country where each customer is located. You want to find out which customers are located in Brazil.
You write the SQL query below. Add a WHERE clause that will return only customers located in Brazil.
How many customers are located in Brazil?
- 3
- 9
- 5 ✅
- 7
Explanation:
To find customers located in Brazil, the SQL query should include a WHERE clause to filter the data. The correct query would be:
SELECT
*
FROM
customer
WHERE
country = 'Brazil';
After executing the query, the database will return the number of customers located in Brazil. Based on the given options, the correct answer is 5.
Test your knowledge on sorting in spreadsheets
Practice Quiz
7. Which spreadsheet menu function is used to sort all data in a spreadsheet by the ranking of a specific sorted column?
- Sort Sheet ✅
- Sort Data
- Sort Range
- Sort By Rank
Explanation:
The Sort Sheet function organizes the entire spreadsheet based on the values in a specific column, keeping all rows intact and sorted relative to the selected column’s order. This ensures that data remains consistent across rows while sorting.
8. In spreadsheets, data analysts can sort a range from the Data tab in the menu or by typing a function directly into an empty cell.
- True ✅
- False
Explanation:
Analysts can use the Data tab to sort a range manually or apply a sorting function like =SORT
in an empty cell to dynamically sort the data. Both approaches are valid depending on the desired flexibility and use case.
9. An analyst uses =SORT to sort spreadsheet data in descending order. What do they type at the end of their sort function?
- TRUE
- DESCEND
- FALSE ✅
- Z-A
Explanation:
The =SORT
function takes a parameter to specify the sort order. Typing FALSE at the end of the function indicates sorting in descending order. For example:
=SORT(range, column, FALSE)
This sorts the data in the specified range and column in descending order.
Test your knowledge on sorting in SQL
Practice Quiz
10. A data analyst wants to sort a list of greenhouse shrubs by price from least expensive to most expensive. Which statement should they use?
- WHERE shrub_price ASC
- ORDER BY shrub_price ✅
- ORDER BY shrub_price
- DESC WHERE shrub_price
Explanation:
The ORDER BY
clause sorts data by a specified column. By default, it arranges values in ascending order, which is from least to most expensive in this case.
11. You are working with a database table that contains data about music genres.
You want to sort the genres by name in ascending order. The genres are listed in the genre_name column. You write the SQL query below.
Add an ORDER BY clause that will sort the genres by name in ascending order.
What genre appears in row 3 of your query result?
- Classical
- Easy Listening
- Alternative
- Blues ✅
Explanation:
The ORDER BY genre_name ASC
clause organizes the genres alphabetically. According to the sorted table provided, “Blues” appears in row 3.
12. You are working with a database table that contains employee data. You want to sort the employees by hire date in descending order. The hire dates are listed in the hire_date column.
You write the SQL query below. Add an ORDER BY clause that will sort the employees by hire date in descending order.
What employee appears in row 1 of your query result?
- Nancy Edwards
- Laura Callahan ✅
- Robert King
- Margaret Park
Explanation:
The ORDER BY hire_date DESC
clause arranges employees by their hire date in descending order (newest to oldest). From the table, Laura Callahan has the most recent hire date and appears in row 1.
Module 1 challenge
Practice Quiz
13. What is the goal of the analysis phase of the data analysis process?
- To describe data structures
- To generate new data
- To identify trends and relationships in data ✅
- To make generalizations about data
14. During which of the four phases of analysis do you compare your data to external sources?
- Format and adjust data
- Transform data
- Get input from others ✅
- Organize data
15. Which of the following actions might occur when transforming data? Select all that apply.
- Identify a pattern in your data ✅
- Make calculations based on your data ✅
- Recognize ✅ relationships in your data ✅
- Eliminate irrelevant info from your data
16. Typically, a data analyst uses filters when they want to expand the amount of data they are working with.
- True
- False ✅
17. A data analyst is sorting data in a spreadsheet. They select a specific collection of cells in order to limit the sorting to just specified cells. Which spreadsheet tool are they using?
- Sort Sheet
- Sort Range ✅
- Limit Sort
- Limit Range
18. A data analyst sorts a spreadsheet range between cells D5 and M5. They sort in descending order by the third column, Column F. What is the syntax they are using?
- =SORT(D5:M5, C, TRUE)
- =SORT(D5:M5, 3, FALSE) ✅
- =SORT(D5:M5, C, FALSE)
- =SORT(D5:M5, 3, TRUE)
19. You are querying a database that contains data about music. Each musical genre is given an ID number. You are only interested in data related to the genre with ID number 7. The genre IDs are listed in the genre_id column.
You write the SQL query below. Add a WHERE clause that will return only data about the genre with Id number 7.
Who is the composer listed in row 4 of your query result?
- Caetano Veloso ✅
- Marisa Monte
- Lulu Santos
- Gilberto Gil
20. You are working with a database that contains invoice data about online music purchases. You are only interested in invoices sent to customers located in the city of Delhi. You want to sort the invoices by order total in ascending order. The order totals are listed in the total column.
You write the SQL query below. Add an ORDER BY clause that will sort the invoices by order total in ascending order.
What total appears in row 4 of your query result?
- 1.98
- 5.94
- 8.91
- 3.96 ✅
21. Fill in the blank: The _____ phase of the data analysis process includes organizing data, formatting and adjusting data, getting input from others, and transforming data by observing relationships between data points and making calculations.
- process
- prepare
- analyze ✅
- act
22. During which of the four phases of analysis do you gather the relevant datasets into an usable structure for a project?
- Format and adjust data
- Get input from others
- Transform data
- Organize data ✅
23. Fill in the blank: Sorting ranks data based on a specific _____ that you select.
- calculation
- observation
- metric ✅
- model
24. A data analyst is sorting data in a spreadsheet. Which tool are they using if all of the data is sorted by the ranking of a specific sorted column and data across rows is kept together?
- Sort Sheet ✅
- Sort Together
- Sort Rank
- Sort Document
25. A data analyst sorts a spreadsheet range between cells A1 and E50. They sort in descending order by the fourth column, Column D. What is the syntax they are using?
- =SORT(A1:E50, 4, FALSE) ✅
- =SORT(A1:E50, 4, TRUE)
- =SORT(A1:E50, D, TRUE)
- =SORT(A1:E50, D, FALSE)
26. You are querying a database that contains data about music. You are only interested in data related to the jazz musician Miles Davis. The names of the musicians are listed in the composer column.
You write the following SQL query, but it is incorrect. What is wrong with the query?
SELECT *
FROM Track
WHERE composer = Miles Davis
- Line 3 should be rewritten as WHERE composer is Miles Davis.
- Composer in line 3 should be capitalized.
- SELECT, FROM, and WHERE should not be capitalized.
- Miles Davis should be in double quotation marks. ✅
27. You are working with a database that contains invoice data about online music purchases. You are only interested in invoices sent to customers located in the city of Paris. You want to sort the invoices by order total in ascending order. The order totals are listed in the total column.
You write the SQL query below. However this query is incorrect. What is wrong with it?
SELECT *
FROM invoice
WHERE billing_city = “Paris”
ORDER total
- SELECT, FROM, WHERE, and ORDER are capitalized.
- Line 4 is missing the text column = between ORDER and total.
- In line 3, “Paris” has quotation marks.
- Line 4 is missing the word BY between ORDER and total. ✅
Explanation: The ORDER
clause in SQL requires the keyword BY
to specify the column for sorting. The corrected query should be:
SELECT *
FROM invoice
WHERE billing_city = "Paris"
ORDER BY total
28. After collecting the relevant datasets for their analysis, a data analyst compares this data to external sources. In which of the four phases of analysis does this occur?
- Organize data
- Format and adjust data
- Transform data
- Get input from others ✅
Explanation:
The “Transform” phase involves making adjustments to the data to prepare it for further analysis, which may include comparing datasets to external sources to ensure accuracy or add context.
29. A data analyst working on a data set is investigating possible relationships in the data. What phase of analysis is the analyst in?
- Format and adjust data
- Get input from others
- Transform data ✅
- Organize data
30. A data analyst sorts a spreadsheet range between cells K9 and L20. They sort in ascending order by the first column, Column K. What is the syntax they are using?
- =SORT(K9:L20, K, TRUE)
- =SORT(K9:L20, K, FALSE)
- =SORT(K9:L20, 1, TRUE) ✅
- =SORT(K9:L20, 1, FALSE)
31. You are querying a database that contains data about music. Each album is given an ID number. You are only interested in data related to the album with ID number 3. The album IDs are listed in the album_id column.
You write the following SQL query, but it is incorrect. What is wrong with the query?
SELECT *
FROM Track
WHERE album = 3
- In line 3, album should be album_id. ✅
- SELECT, FROM, and WHERE should be capitalized.
- In line 3, album is not capitalized.
- Line 3 contains an equal sign.
32. In the data analysis process, which of the following refers to a phase of analysis? Select all that apply.
- Format data using sorts and filters ✅
- Get input from others ✅
- Organize data into understandable sections ✅
- Visualize the data
Explanation:
- Format data using sorts and filters: Sorting and filtering help prepare the data for analysis by organizing it in a usable format.
- Get input from others: Collaboration allows analysts to gather diverse perspectives and ensure the accuracy of their conclusions.
- Organize data into understandable sections: Structuring data helps break it into manageable parts for better comprehension.
33. A data analyst is collecting all the datasets that are relevant to their project. Which of the four phases of analysis is the data analyst in?
- Get input from others
- Organize data ✅
- Format and adjust data
- Transform data
34. A data analyst investigating a data set is interested in showing only data that matches given criteria. What is this known as?
- Sorting
- Modeling
- Measuring
- Filtering ✅
35. You are working with a database that contains invoice data about online music purchases. You are only interested in invoices sent to customers located in the city of Delhi. You want to sort the invoices by order total in ascending order. The order totals are listed in the total column.
You write the SQL query below. However this query is incorrect. What is wrong with it?
SELECT *
FROM invoice
WHERE billing_city = “Delhi”
ORDER BY order_total
- SELECT, FROM, WHERE, and ORDER BY are capitalized.
- In line 4, order_total should be total. ✅
- In line 3, “Delhi” has quotation marks.
- Line 4 contains the word BY.
36. A data analyst chooses to rank the data based on a specific metric. What is the term for this action?
- Sorting ✅
- Filtering
- Modeling
- Measuring
Explanation:
Sorting arranges data in ascending or descending order based on a specified metric, facilitating comparisons or pattern identification.
37. A data analyst investigates the data they’ve collected to look for patterns and relationships between the data. They also perform calculations based on the data. In which of the four phases of analysis does this occur?
- Format and adjust data
- Transform data ✅
- Get input from others
- Organize data
38. A data analyst working on a very large dataset decides to narrow the scope of the data that they are working with in order to make the analysis more manageable. What can they use to narrow the amount of data?
- Modeling
- Sorting
- Filtering ✅
- Measuring
39. A data analyst uses a function to sort a spreadsheet range between cells H1 and K65. They sort in ascending order by the first column, Column H. What is the syntax they are using?
- =SORT(H1:K65, 1, FALSE)
- =SORT(H1:K65, A, TRUE)
- =SORT(H1:K65, A, FALSE)
- =SORT(H1:K65, 1, TRUE) ✅
40. You are querying a database that contains data about music. Each musical genre is given an ID number. You are only interested in data related to the genre with ID number 2. The genre IDs are listed in the genre_id column.
You write the following SQL query, but it is incorrect. What is wrong with the query?
SELECT *
FROM Track
WHERE composer = 2
- Line 3 contains an equal sign.
- Composer should be genre_id in line 3. ✅
- Composer is not capitalized in line 3.
- SELECT, FROM, and WHERE are capitalized.
Explanation:
The query mistakenly filters the composer
column instead of the genre_id
column. The corrected query should be:
SELECT *
FROM Track
WHERE genre_id = 2
41. You are performing a calculation during your analysis of a dataset. Which phase of analysis are you in?
- Get input from others
- Format and adjust data
- Organize data
- Transform data ✅
Explanation:
The “Transform” phase includes mathematical computations, aggregations, and adjustments that help prepare the dataset for visualization and insight generation.
42. A data analyst is sorting spreadsheet data. They use the spreadsheet tool Sort Sheet. What does this tool do?
- It sorts all of the data in a spreadsheet by a specific sorted column. ✅
- It sorts all of the data in a spreadsheet by the ranking of a specific sorted row.
- It allows the analyst to sort by a specific sorted row.
- It allows the analyst to sort a specific selection of cells only.
43. Which of the following tasks would a data analyst perform during the analyze phase of the data analysis process? Select all that apply.
- Getting input from others ✅
- Organizing data into understandable sections ✅
- Visualizing the data with charts
- Preparing a report for the stakeholders
44. You write the SQL query below. However this query is incorrect. What is wrong with it?
SELECT *
FROM invoice
WHERE billing_city = “Chicago”
ORDER total
- Line 4 is missing column = between ORDER and total.
- SELECT, FROM, WHERE, and ORDER are capitalized.
- Line 4 is missing the BY between ORDER and total. ✅
- In line 3, “Chicago” has quotation marks.
45. A data analyst is analyzing sales data to identify trends and relationships. What phase of the data analysis process does this describe?
- Analyze ✅
- Act
- Process
- Prepare
46. A data analyst sorts a spreadsheet range between cells A15 and G71. They sort in ascending order by the second column, Column B. What is the syntax they are using?
- =SORT(A15:G71, 2, FALSE)
- =SORT(A15:G71, 2, TRUE) ✅
- =SORT(A15:G71, B, FALSE)
- =SORT(A15:G71, B, TRUE)
47. A data analyst is using the spreadsheet tool Sort Range. What purpose does this tool serve?
- It allows the analyst to sort the data in a spreadsheet by a specific sorted column.
- It allows the analyst to sort a specific selection of cells only. ✅
- It sorts all of the data in a spreadsheet by a specific sorted row.
- It sorts all of the data in a spreadsheet by the ranking of a specific sorted row.
Explanation:
The Sort Range tool confines the sorting action to a specific range of data, preserving the rest of the dataset.
48. A data analyst sorts a spreadsheet range between cells F19 and G82. They sort in ascending order by the second column, Column G. What is the syntax they are using?
- =SORT(F19:G82, B, FALSE)
- =SORT(F19:G82, 2, TRUE) ✅
- =SORT(F19:G82, B, TRUE)
- =SORT(F19:G82, 2, FALSE)
Explanation:
- The range is
F19:G82
. 2
indicates the second column (Column G).TRUE
specifies ascending order.
Related contents:
Module 2: Format and adjust data
Module 3: Aggregate data for analysis
Module 4: Perform data calculations
Module 4: Course challenge
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