Prepare Data for Exploration : Weekly challenge 2
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Coursera google professional data analytical course 3 weekly challange 2 answers
1.
Question 1
Fill
in the blank: A preference in favor of or against a person, group of people, or
thing is called _____. It is an error in data analytics that can systematically
skew results in a certain direction.
1 / 1 point
data
interoperability
data
collection
data
bias
data
anonymization
Correct
2.
Question 2
A
data analyst studies the sales data obtained after each marketing campaign to
determine the effectiveness of the campaign. When the findings are ambiguous,
the analyst chooses to interpret the results positively. What type of bias does
this represent?
0 / 1 point
Sampling
Confirmation
Interpretation
Observer
Incorrect
3.
Question 3
A
data analyst reviews a dataset. They conclude that the data is inaccurate and
incomplete in some places. They also confirm that the data is biased. What type
of data does this describe?
1 / 1 point
Informed
data
Good
data
Open
data
Unreliable
data
Correct
4.
Question 4
Fill
in the blank: Data _____ refers to well-founded standards of right and wrong
that dictate how data is collected, shared, and used.
1 / 1 point
ethics
anonymization
credibility
privacy
Correct
5.
Question 5
Ownership
is a key issue in data ethics. Who owns data?
0 / 1 point
The
organization that invests time and money collecting, processing, and analyzing
the data
The
law enforcement agencies that enforce data protection laws
The
government that passes data-protection legislation
The
individual who originally generates the data
Incorrect
6.
Question 6
In
data ethics, which of the following rights is included in data privacy? Select
all that apply.
0 / 1 point
The
right to inspect the data.
The
right to meet the people who will be working on the data.
This should not be selected
The
right to update the data.
The
right to correct the data.
7.
Question 7
Which
of the following are commonly used methods for anonymizing data? Select all
that apply.
0.5 / 1 point
Deleting
This should not be selected
Blanking
Masking
Correct
Hashing
Correct
8.
Question 8
The
government of a large city collects data on the quality of the city’s
infrastructure. Any business, nonprofit organization, or citizen can access the
government’s databases and re-use or re-distribute the data. Is this an example
of open data?
1 / 1 point
Yes
No
Correct
1.
Question 1
Fill
in the blank: Data _____ is a preference in favor of or against a person, group
of people, or thing. In data analytics, it can systematically skew results in a
certain direction.
0 / 1 point
collection
anonymization
interoperability
bias
Incorrect
Please
review the video on errors that can skew
results.
2.
Question 2
A
university surveys its student-athletes about their experience in college
sports. The survey only includes student-athletes with scholarships. What type
of bias is this an example of?
1 / 1 point
Confirmation
bias
Sampling
bias
Observer
bias
Interpretation
bias
Correct
3.
Question 3
Which
of the following “C’s” describe qualities of good data? Select all that apply.
1 / 1 point
Cited
Correct
Current
Correct
Comprehensive
Correct
Consequential
4.
Question 4
In
data ethics, what gives an individual the right to know why their data is
collected and how it will be used?
0 / 1 point
Privacy
Consent
Anonymization
Credibility
Incorrect
Please
review the video on well-founded standards
of right and wrong.
5.
Question 5
An
individual who provides their data has the right to know and understand all of
the data-processing activities and algorithms used on that data. This is called
transaction transparency.
1 / 1 point
True
False
Correct
6.
Question 6
A
data analyst is working with sensitive data from their client. Because the data
is sensitive, the analyst reminds the client of their data privacy rights. What
rights do these include? Select all that apply.
1 / 1 point
The
right to update the data.
Correct
The
right to inspect the data.
Correct
The
right to meet the people who will work on the data.
The
right to correct the data.
Correct
7.
Question 7
Data
anonymization applies to both text and images.
1 / 1 point
True
False
Correct
8.
Question 8
A
company decides to allow people access to its databases for the purposes of
re-using and re-distributing data. In order to facilitate this, they use a
common terminology and format. This is an example of what?
1 / 1 point
Courtesy
Interoperability
Convenience
Standardization
Correct
1.
Question 1
A
clinic surveys a group of male and female patients about their experience with
physical therapy. The survey does not include people with disabilities. Is the
survey data biased?
1 / 1 point
Yes
No
Correct
2.
Question 2
Which
of the following are types of data bias often encountered in data analytics?
Select all that apply.
1 / 1 point
Educational
bias
Confirmation
bias
Correct
Interpretation
bias
Correct
Observer
bias
Correct
3.
Question 3
In
general, the usefulness of data decreases as time passes.
1 / 1 point
True
False
Correct
4.
Question 4
In
data ethics, what gives an individual the right to know why their data is collected
and how it will be used?
0 / 1 point
Consent
Anonymization
Credibility
Privacy
5.
Question 5
Transactional
transparency is a fundamental right for an individual who provides their data.
Which of the following is included in this right? Select all that apply.
0.75 / 1 point
Knowing
the data-processing activities to be used on that data.
Correct
Meeting
the people who will be working on the data.
Knowing for how long the data will be used.
Understanding
the algorithms to be used on the data.
Correct
6.
Question 6
What
is data privacy?
0 / 1 point
Providing
free access, usage, and sharing of data
Preserving
a data subject’s information and activity for all data transactions
Searching
for or interpreting supporting information
Applying
standards that preserve the consistency in how data is collected, shared, and
used
Incorrect
7.
Question 7
Why
would a company routinely use a data anonymizer when working with their users’
data?
1 / 1 point
To
make it easier to recognize what data corresponds to which individual
To
keep its users’ data consistent by removing any identifying information
To
eliminate data bias caused by sensitive information
To
protect its users’ private and sensitive data by removing any identifying
information
Correct
8.
Question 8
Fill
in the blank: When a company or organization allows their data to be re-used
and re-distributed that data is considered to be _____ .
1 / 1 point
free
allowable
closed
open
Correct
1.
Fill in the blank: A preference in favor of or against a person, group of people, or thing is called _____. It is an error in data analytics that can systematically skew results in a certain direction.
2.
A researcher believes that playing music to plants will increase flower production. They set up an experiment and collect the data. Although the findings are inconclusive, they choose to interpret the data in a way that supports their desired result. What type of bias does this represent?
3.
A data analyst reviews a dataset. They confirm that the data is comprehensive, cited, and current. What type of data does this describe?
4.
If a company uses your personal data as part of a financial transaction, you should be made aware of the nature and scale of the transaction. What concept of data ethics does this refer to?
5.
An individual who provides their data has the right to know and understand all of the data-processing activities and algorithms used on that data. This concept refers to which aspect of data ethics?
6.
An employer accesses an employee’s credit report without their consent. This is not a violation of the employee’s privacy because they work at the company.
7.
Which of the following are commonly used methods for anonymizing data? Select all that apply.
8.
A government agency allows any business, nonprofit organization, or citizen to access the government’s databases and re-use or re-distribute the data. What type of data is this an example of?
1.
Which of the following best describes data bias?
2.
Which of the following are types of data bias often encountered in data analytics? Select all that apply.
3.
Which of the following “C’s” describe qualities of good data? Select all that apply.
4.
Before completing a survey, a customer wants to learn more about how a company will use their data. They want to know why their data is being collected, how it will be used, and how long it will be stored. What data ethics concept does this describe?
5.
Transactional transparency is a fundamental right for an individual who provides their data. Which of the following is included in this right? Select all that apply.
6.
The right to inspect, update, or correct your own data is part of which aspect of data ethics?
7.
Data anonymization applies to both text and images.
8.
A key aspect of open data is free access to people’s personal information.
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