Module 1: Data Types and Structures Answers (Part 3: Q31–46)

This is Part 3 of the Module 1 quiz answers for “Introducing Data Analytics and Analytical Thinking” from the Google Data Analytics Professional Certificate on Coursera.

Here, we’ll walk through questions 31 to 46 with detailed explanations to support your learning.

To find answers to the remaining questions, check out the full module breakdown below:

31. A data analyst is working on an urgent traffic study. As a result of the short time frame, which type of data are they most likely to use?

  • Theoretical
  • Historical ✅
  • Personal
  • Unclean

Explanation:
When time is limited, historical data is the best option because it’s already collected and available.

32. Nominal qualitative data has a set order or scale.

  • True
  • False ✅

Explanation: Nominal qualitative data represents categories without a specific order or hierarchy. For example, eye color or types of cuisine.

33. Internal data is more reliable because it’s clean.

  • True
  • False ✅

Explanation:
Nominal data has no order or ranking (e.g., colors, names, types of cuisine).

34. Structured data is likely to be found in which of the following formats? Select all that apply.

  • Audio file
  • Digital photo
  • Spreadsheet ✅
  • Table ✅

Explanation: Structured data is organized in predefined formats like tables or spreadsheets, which make it easy to search and analyze.

35. A Boolean data type must have a numeric value.

  • True
  • False ✅

Explanation:
Boolean values represent logic (True/False), not necessarily numbers.

36. In long data, separate columns contain the values and the context for the values, respectively. What does each column contain in wide data?

  • A specific constraint
  • A specific data type
  • A unique data variable ✅
  • A unique format

Explanation:
In wide format, each column represents a specific variable for the subject (e.g., height, weight).

37. Fill in the blank: Data transformation enables data analysts to change the _____ of the data.

  • value
  • structure ✅
  • accuracy
  • meaning

Explanation:
It changes how data is organized, not its meaning or accuracy.

38. Continuous data is measured and has a limited number of values.

  • True
  • False ✅

Explanation:
Continuous data can have infinite values within a range (e.g., 2.35, 2.36…).

39. Which of the following values are examples of a Boolean data type? Select all that apply.

  • True or false ✅
  • Yes, no, or unsure
  • Yes or no ✅
  • One, two, or three

Explanation: Boolean data types represent binary choices or states, such as true/false or yes/no.

40. If you have a short time frame for data collection and need an answer immediately, you likely will have to use historical data.

  • True ✅
  • False

Explanation:
When time is tight, historical data is a go-to since it’s already collected and processed.

41. Which of the following is an example of continuous data?

  • Leading actors in movie
  • Box office returns
  • Movie run time ✅
  • Movie budget

Explanation:
Run time is measured and can take any value, making it continuous.

42. Which of the following questions collect nominal qualitative data? Select all that apply.

  • How likely are you to recommend this restaurant to a friend?
  • Is this your first time dining at this restaurant? ✅
  • Have you heard of our frequent diner program? ✅
  • Did anyone recommend our restaurant to you today? ✅

Explanation:
These gather categorical, unordered responses (Yes/No), making them nominal.

43. Data transformation can change the structure of the data. An example of this is taking data stored in one format and converting it to another.

  • True ✅
  • False

Explanation:
Changing formats (e.g., from text to number or file type) is part of transformation.

44. Which of the following is a benefit of internal data?

  • Internal data is less vulnerable to biased collection.
  • Internal data is the only data relevant to the problem.
  • Internal data is less likely to need cleaning.
  • Internal data is more reliable and easier to collect. ✅

Explanation: Internal data is typically collected within an organization, ensuring reliability and ease of access compared to external data sources.

45. Which of the following is an example of structured data?

  • Audio file
  • Relational database ✅
  • Video file
  • Digital photo

Explanation:
Structured data is stored in databases with clear schema—rows and columns.

46. The following is a selection from a spreadsheet:

What kind of data format does it contain?

  • Wide
  • Short
  • Long ✅
  • Narrow

Explanation:
If the same subject has multiple rows (e.g., repeated measures over time), it’s long format.

Part 2 (Q16–30)

Congratulations! You’ve completed all questions. Share this post if it helped you, and check out other Coursera quiz answers below.

Related contents:

Module 2: Data responsibility
Module 3: Database essentials
Module 4: Organize and protect data
Module 6: *Course challenge*​

You might also like:

Course 1: Foundations: Data, Data, Everywhere
Course 2: Ask Questions to Make Data-Driven Decisions
Course 4: Process Data from Dirty to Clean
Course 5: Analyze Data to Answer Questions
Course 6: Share Data Through the Art of Visualization
Course 7: Data Analysis with R Programming
Course 8: Google Data Analytics Capstone: Complete a Case Study

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