D467 - Exploring Data Study Guide Exam Qestions And All Correct Answers.
1 view 0 purchase
Course
WGU D467
Institution
WGU D467
What are cookies?
Types of malware that can damage computers
Small files stored on computers that contain information about users
Programs that enable users to access websites
Pieces of code that store information about a website - Answer Small files stored on computers that contain inform...
D467 - Exploring Data Study Guide Exam
Qestions And All Correct Answers.
What are cookies?
Types of malware that can damage computers
Small files stored on computers that contain information about users
Programs that enable users to access websites
Pieces of code that store information about a website - Answer 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.
second-party
third-party
multi-party
first-party - Answer first-party
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?
First-party
Multi-party
Third-party
Second-party - Answer Second-party
,In data analytics, what term refers to all possible data values in a dataset?
Source
Representation
Population
Sample - Answer Population
An entertainment website displays a star rating for a movie based on user reviews. Users can select from
one to five whole stars to rate the movie. The star rating is an example of what type of data? Select all
that apply.
Continuous
Discrete
Ordinal
Nominal - Answer Discrete
Ordinal
What type of data is the height of a skyscraper?
Discrete
Qualitative
Nominal
Continuous - Answer Continuous
In data analytics, what is the term for data that is generated from, and lives, outside of an organization?
Peripheral
Outer
Internal
,External - Answer External
What are the key characteristics of unstructured data? Select all that apply.
Fits neatly into rows and columns
Unorganized
May have an internal structure
Clearly identifiable construction - Answer Unorganized
May have an internal structure
Fill in the blank: A data model is used to organize _____ and how they relate to one another.
data visualizations
database structures
data elements
spreadsheet fields - Answer 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
Subject
Character
Point - Answer Field
Fill in the blank: A data type is a specific kind of data _____ that tells what kind of value the data is.
attribute
frame
, model
point - Answer attribute
What are the key characteristics of a text, or string, data type? Select all that apply.
Contains textual information
Only two possible values
Sequence of characters and punctuation
Has numerical percentages - Answer Contains textual information
Sequence of characters and punctuation
In a data table, where are fields contained?
Rows
Columns
Favorites
Charts - Answer Columns
When using long data, each subject has data in multiple rows. This is because each row represents what?
Data in different formats
True or false data points
One observation per subject
Multiple values - Answer One observation per subject
What strategy do data professionals use in order to ensure unbiased sampling?
Use random sampling during data collection
Write survey questions that encourage specific responses
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller TestSolver9. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
