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D467 wgu exploring data 152 questions with all correct answers!! 2024
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D467 wgu exploring data 152 questions with all correct answers!! 2024
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D467 WGU Exploring Data1. To track people's online activities and interests, which method of data
collection is most effective?: Cookies
2. What are cookies?: Small files stored on computers that contain information
about users
3. Fill in the blank: For data analytics projects, _____ data is typically
preferred because users know it originated within the organization.: first-
party
4. In data analytics, what term refers to all possible data values in a dataset?:
Population
5. A grocery store chain purchases customer data from a credit card
company. The grocer uses this data to identify its most loyal customers
and offer them special promotions and discounts. What type of data is
being used in this scenario?: Second-party
6. What type of data is the height of a skyscraper?: Continuous
7. In data analytics, what is the term for data that is generated from, and lives,
outside of an: External
8. Fill in the blank: A data model is used to organize _____ and how they
relate to one another.: data elements
9. When discussing structured databases, data analysts refer to the data
contained in a row as a record. How do they refer to the data contained in
a column?: Field
10. Fill in the blank: A data type is a specific kind of data _____ that tells what
kind of value the data is.: attribute
11. In a data table, where are fields contained?: Columns
12. When using long data, each subject has data in multiple rows. This is
because each row represents what?: One observation per subject
13. Fill in the blank: The number of stars awarded to a product review is an
example of _____ data.: discrete
14. A data analyst works on an urgent traffic study. As a result of the short
time frame, which type of data might yield the best results?: Historical
15. A political scientist needs to poll all voters in Seoul, South Korea, in order
to predict the outcome of an election. Because it would be impossible to
collect data from every single person in the city, the political scientist polls
a part of the population that is representative of the whole. What does this
scenario describe?: Using a sample
16. A data scientist at a tech company records whether users have accepted
their company's terms of service or not. What data type is being collected
in this scenario?: Boolean
, 17. Which of the following questions would enable a data professional to
collect nominal qualitative data?: Did anyone recommend our music lessons
to you?
18. Fill in the blank: Bias is a _____ preference in favor of or against a person,
group of people, or thing.: conscious or subconscious
19. What is the term for the tendency to search for or interpret information in
a way that validates pre-existing beliefs?: Confirmation bias
20. Fill in the blank: Data is considered _____ when it is accurate, complete,
and unbiased information that has been vetted and proven fit for use.:
reliable 21. A junior data analyst learns that the dataset they have been
given is six years old. After looking into this further, they also discovered
that the age of the data is making the information irrelevant to their project.
What good data source principle have they used to evaluate the dataset?:
Current
22. What concept states that all data-processing activities and algorithms
should be completely explainable and understood by the individual who
provides their data?: Transaction transparency
23. A data analyst removes personally identifying information from a dataset.
What task are they performing?: Data anonymization
24. Before completing a survey, an individual acknowledges reading
information about how and why the data they provide will be used. What
is this concept called?: Consent
25. What are data ethics?: Well-founded standards of right and wrong that dictate
how data is collected, shared, and used
26. Fill in the blank: Openness refers to _____ access, usage, and sharing of
data.: free
27. What is the preferred method for open data to be made available?: A
convenient and modifiable internet download
28. Legal right to access your data is an element of which aspect of data
ethics?: Privacy
29. A data team at a nature preserve researches the origin of a dataset to
confirm it was created by a reputable source, such as a nonprofit research
institution. Which aspect of good data are they prioritizing?: Cited
30. A manager in charge of selling a particular product interprets any
ambiguous customer feedback about the product as being positive. What
type of bias does this represent?: Interpretation
31. Before completing a survey, a respondent learns more about how their
data will be used. They understand why their data is being collected and
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