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WGU D467 Exploring Data Questions and Answers Updated 2024 All 152 Questions Covered Completely
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D467 WGU Exploring Data Questions and Answers Updated 2024 All 152 Questions Covered Completely
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D467 WGU Exploring Data Questions andAnswers Updated 2024 All 152 Questions
Covered Completely
To track people's online activities and interests, which method of data collection is most effective?
Cookies
What are cookies?
Small files stored on computers that contain information about users
Fill in the blank: For data analytics projects, _____ data is typically preferred because users know it
originated within the organization.
first-party
In data analytics, what term refers to all possible data values in a dataset?
Population
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
What type of data is the height of a skyscraper?
Continuous
In data analytics, what is the term for data that is generated from, and lives, outside of an
External
Fill in the blank: A data model is used to organize _____ and how they relate to one another.
data elements
,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
Fill in the blank: A data type is a specific kind of data _____ that tells what kind of value the data is.
attribute
In a data table, where are fields contained?
Columns
When using long data, each subject has data in multiple rows. This is because each row represents what?
One observation per subject
Fill in the blank: The number of stars awarded to a product review is an example of _____ data.
discrete
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
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
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
Which of the following questions would enable a data professional to collect nominal qualitative data?
Did anyone recommend our music lessons to you?
Fill in the blank: Bias is a _____ preference in favor of or against a person, group of people, or thing.
conscious or subconscious
, What is the term for the tendency to search for or interpret information in a way that validates pre-existing
beliefs?
Confirmation bias
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
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
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
A data analyst removes personally identifying information from a dataset. What task are they performing?
Data anonymization
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
What are data ethics?
Well-founded standards of right and wrong that dictate how data is collected, shared, and used
Fill in the blank: Openness refers to _____ access, usage, and sharing of data.
free
What is the preferred method for open data to be made available?
A convenient and modifiable internet download
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