D467 WGU Exploring Data

D467 WGU Exploring Data with questions and
answers



To track people's online activities and interests, which method of data collection is most effective?
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Cookies

3 multiple choice options
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What are cookies? st st




Small files stored on computers that contain information about users
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3 multiple choice options
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Fill in the blank: For data analytics projects, _____ data is typically preferred because users know it
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originated within the organization.
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first-party

3 multiple choice options
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In data analytics, what term refers to all possible data values in a dataset?
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Population

3 multiple choice options
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A grocery store chain purchases customer data from a credit card company. The grocer uses this
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data to identify its most loyal customers and offer them special promotions and discounts. What
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type of data is being used in this scenario?
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Second-party

What type of data is the height of a skyscraper?
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Continuous

In data analytics, what is the term for data that is generated from, and lives, outside of an
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External

, Fill in the blank: A data model is used to organize _____ and how they relate to one another.
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data elements st




When discussing structured databases, data analysts refer to the data contained in a row as a
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record. How do they refer to the data contained in a column?
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Field

Fill in the blank: A data type is a specific kind of data _____ that tells what kind of value the data is.
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attribute

In a data table, where are fields contained?
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Columns

When using long data, each subject has data in multiple rows. This is because each row represents
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what?
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One observation per subject
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Fill in the blank: The number of stars awarded to a product review is an example of _____ data.
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discrete

A data analyst works on an urgent traffic study. As a result of the short time frame, which type of
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data might yield the best results?
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Historical

A political scientist needs to poll all voters in Seoul, South Korea, in order to predict the outcome of
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an election. Because it would be impossible to collect data from every single person in the city, the
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political scientist polls a part of the population that is representative of the whole. What does this
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scenario describe?
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Using a sample st st




A data scientist at a tech company records whether users have accepted their company's terms of
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service or not. What data type is being collected in this scenario?
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Boolean

Which of the following questions would enable a data professional to collect nominal qualitative
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data?
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Did anyone recommend our music lessons to you?
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