D491 WGU INTRODUCTION TO ANALYTICS OA EXAM QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+
A company might analyze sales data to understand why a particular product is selling
well. This could involve looking at factors such as price, marketing efforts, and customer
demographics. - What type of Analytics is this? - CORRECT ANSWER✔✔Diagnostic
A digital marketing company uses demographic data of people to strategize location-
specific campaigns. This involves processing the raw demographic data to identify key
target markets.
- What is this an example of and who/role can solve this? - CORRECT ANSWER✔✔
data processing, Data Analyst
A hospital might use what type of Analytics to understand the factors contributing to
patient readmission rates? - CORRECT ANSWER✔✔Exploratory
A Project Sponsor's role is complemented well with q______ and q_____ impacts for
business value. - CORRECT ANSWER✔✔quantitative and qualitative
A/B testing: Designing and conducting A/B tests to evaluate the effectiveness of
different strategies or interventions; A/B tests are statistical methods used to compare
two versions of a product or service to determine which version performs better
- Who/role is responsible for this? - CORRECT ANSWER✔✔(DS) Data Scientist
Acronum for the 4 main deliverables for the Operationlizing phase (6) : SACT -
CORRECT ANSWER✔✔Presentation for Project SPONSORS, Presentation for
ANALYSTS, CODE, TECHNICAL specifications
AI-Powered Health App: An AI-powered health app spends $10,000 on a marketing
campaign and $5000 maintaining the app, including updating the AI models. If they
acquire 200 new customers - how much would the CAC be? - CORRECT ANSWER✔
✔the CAC would be ($10,000 + $5000)/200 = $75 per customer. This includes the
marketing spend and the costs of the data science team to keep the AI models up-to-
date and effective.
Algorithm development: Creating and developing new machine learning algorithms or
adapting existing algorithms to solve specific problems.
- Who/role is responsible for this? - CORRECT ANSWER✔✔ML (Machine Learning)
Engineer
API - CORRECT ANSWER✔✔Application Programming Interface
,APIs - What are they and who're they most often used by? - Data scientists, Data
Engineers, Project Sponsors, DBA's or Project Managers? - CORRECT ANSWER✔✔
Application Programming Interface; a code library for building programs, these are most
often used by Data Engineers
As a ____ ______ it's your job to deliver to the business stakeholders the business
function such as analysis, dashboards, or (on occasion) a ML model - CORRECT
ANSWER✔✔Data scientist
As a Data Engineer, when data-related knowledge and insight is needed from a data
scientist, a Data Engineer fits the role of a ___________, because of the Engineer is in
request of the Scientist for decision making. - CORRECT ANSWER✔✔stakeholder
As a data scientist, work can often be unimpactful, so staying focused on working
towards goals and business insights is crucial. - True or False? - CORRECT ANSWER
✔✔True
Banks and other financial institutions can use predictive analytics to analyze customer
data and identify potential risks like defaulting on loans or credit card fraud. - CORRECT
ANSWER✔✔Predictive Analytics
Bounce Rate - CORRECT ANSWER✔✔the percentage of visitors to a particular
website who navigate away from the site after viewing only one page.
bounce rate: - CORRECT ANSWER✔✔a metric that measures the percentage of
website visitors who leave after viewing only one page.
By analyzing transaction data, they can identify patterns that might indicate fraudulent
activity. (note that we're looking for indications not indications to predictions, think about
what is going on not what your opinion of it) - What type of Analytics is this? -
CORRECT ANSWER✔✔Exploratory
Calculating CAC can be much more complex and may take into account other ______
like overhead costs, technology costs, and more. The goal for any business is to have a
CAC that is significantly __________ than the Customer Lifetime Value (CLV), as this
means that the business is profitable. - CORRECT ANSWER✔✔factors, profitable
Centroid Clustering - CORRECT ANSWER✔✔clusters are represented by their
centroids.
hierarchical clustering with cluster distance defined by a centroid/assigned center
churn rate: - CORRECT ANSWER✔✔a metric that measures the percentage of
customers who stop doing business with a company over a certain period
, click-through rate (CTR) - CORRECT ANSWER✔✔a metric that measures the
percentage of people who click on a link or advertisement
Cloud computing: Using cloud computing platforms to deploy and scale machine
learning systems
- Who/role is responsible for this? - CORRECT ANSWER✔✔ML (Machine Learning)
Engineer
Cloud computing: Working with cloud computing platforms to deploy and manage data
infrastructure
- Who/role is responsible for this? - CORRECT ANSWER✔✔Data Engineer (DE)
clustering: - CORRECT ANSWER✔✔a technique used to group similar data points
based on their characteristics or attributes; for example, a marketing team might use
clustering techniques to group customers with similar purchasing behaviors to create
targeted marketing campaigns.
Collaboration: Collaborating with data engineers, software developers, and business
stakeholders to understand data requirements and design solutions that align with
business goals
- Who/role is responsible for this? - CORRECT ANSWER✔✔(DS) Data Scientist
Collaboration: Collaborating with data scientists, analysts, and stakeholders to
understand data requirements and design infrastructures that support data-driven
decision-making for businesses and organizations
- Who/role is responsible for this? - CORRECT ANSWER✔✔Data Engineer (DE)
Collaboration: Collaborating with data scientists, software developers, and business
stakeholders to identify and solve machine learning problems that align with business
goals and objectives
- Who/role is responsible for this? - CORRECT ANSWER✔✔ML (Machine Learning)
Engineer
Communication in ___________ are held in order to show the results to the
stakeholders, scheduling in the time is essential. - CORRECT ANSWER✔✔meetings
Communication: Presenting complex data and analysis clearly and understandably to
stakeholders across different functions and levels of the organization; these
stakeholders can range from junior to senior levels, depending on their roles
- Who/role is responsible for this? - CORRECT ANSWER✔✔Decision
Scientist/Decision Analyst
Company X might use include surveys, interviews, observations, focus groups,
experiments, and secondary data analysis.
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+
A company might analyze sales data to understand why a particular product is selling
well. This could involve looking at factors such as price, marketing efforts, and customer
demographics. - What type of Analytics is this? - CORRECT ANSWER✔✔Diagnostic
A digital marketing company uses demographic data of people to strategize location-
specific campaigns. This involves processing the raw demographic data to identify key
target markets.
- What is this an example of and who/role can solve this? - CORRECT ANSWER✔✔
data processing, Data Analyst
A hospital might use what type of Analytics to understand the factors contributing to
patient readmission rates? - CORRECT ANSWER✔✔Exploratory
A Project Sponsor's role is complemented well with q______ and q_____ impacts for
business value. - CORRECT ANSWER✔✔quantitative and qualitative
A/B testing: Designing and conducting A/B tests to evaluate the effectiveness of
different strategies or interventions; A/B tests are statistical methods used to compare
two versions of a product or service to determine which version performs better
- Who/role is responsible for this? - CORRECT ANSWER✔✔(DS) Data Scientist
Acronum for the 4 main deliverables for the Operationlizing phase (6) : SACT -
CORRECT ANSWER✔✔Presentation for Project SPONSORS, Presentation for
ANALYSTS, CODE, TECHNICAL specifications
AI-Powered Health App: An AI-powered health app spends $10,000 on a marketing
campaign and $5000 maintaining the app, including updating the AI models. If they
acquire 200 new customers - how much would the CAC be? - CORRECT ANSWER✔
✔the CAC would be ($10,000 + $5000)/200 = $75 per customer. This includes the
marketing spend and the costs of the data science team to keep the AI models up-to-
date and effective.
Algorithm development: Creating and developing new machine learning algorithms or
adapting existing algorithms to solve specific problems.
- Who/role is responsible for this? - CORRECT ANSWER✔✔ML (Machine Learning)
Engineer
API - CORRECT ANSWER✔✔Application Programming Interface
,APIs - What are they and who're they most often used by? - Data scientists, Data
Engineers, Project Sponsors, DBA's or Project Managers? - CORRECT ANSWER✔✔
Application Programming Interface; a code library for building programs, these are most
often used by Data Engineers
As a ____ ______ it's your job to deliver to the business stakeholders the business
function such as analysis, dashboards, or (on occasion) a ML model - CORRECT
ANSWER✔✔Data scientist
As a Data Engineer, when data-related knowledge and insight is needed from a data
scientist, a Data Engineer fits the role of a ___________, because of the Engineer is in
request of the Scientist for decision making. - CORRECT ANSWER✔✔stakeholder
As a data scientist, work can often be unimpactful, so staying focused on working
towards goals and business insights is crucial. - True or False? - CORRECT ANSWER
✔✔True
Banks and other financial institutions can use predictive analytics to analyze customer
data and identify potential risks like defaulting on loans or credit card fraud. - CORRECT
ANSWER✔✔Predictive Analytics
Bounce Rate - CORRECT ANSWER✔✔the percentage of visitors to a particular
website who navigate away from the site after viewing only one page.
bounce rate: - CORRECT ANSWER✔✔a metric that measures the percentage of
website visitors who leave after viewing only one page.
By analyzing transaction data, they can identify patterns that might indicate fraudulent
activity. (note that we're looking for indications not indications to predictions, think about
what is going on not what your opinion of it) - What type of Analytics is this? -
CORRECT ANSWER✔✔Exploratory
Calculating CAC can be much more complex and may take into account other ______
like overhead costs, technology costs, and more. The goal for any business is to have a
CAC that is significantly __________ than the Customer Lifetime Value (CLV), as this
means that the business is profitable. - CORRECT ANSWER✔✔factors, profitable
Centroid Clustering - CORRECT ANSWER✔✔clusters are represented by their
centroids.
hierarchical clustering with cluster distance defined by a centroid/assigned center
churn rate: - CORRECT ANSWER✔✔a metric that measures the percentage of
customers who stop doing business with a company over a certain period
, click-through rate (CTR) - CORRECT ANSWER✔✔a metric that measures the
percentage of people who click on a link or advertisement
Cloud computing: Using cloud computing platforms to deploy and scale machine
learning systems
- Who/role is responsible for this? - CORRECT ANSWER✔✔ML (Machine Learning)
Engineer
Cloud computing: Working with cloud computing platforms to deploy and manage data
infrastructure
- Who/role is responsible for this? - CORRECT ANSWER✔✔Data Engineer (DE)
clustering: - CORRECT ANSWER✔✔a technique used to group similar data points
based on their characteristics or attributes; for example, a marketing team might use
clustering techniques to group customers with similar purchasing behaviors to create
targeted marketing campaigns.
Collaboration: Collaborating with data engineers, software developers, and business
stakeholders to understand data requirements and design solutions that align with
business goals
- Who/role is responsible for this? - CORRECT ANSWER✔✔(DS) Data Scientist
Collaboration: Collaborating with data scientists, analysts, and stakeholders to
understand data requirements and design infrastructures that support data-driven
decision-making for businesses and organizations
- Who/role is responsible for this? - CORRECT ANSWER✔✔Data Engineer (DE)
Collaboration: Collaborating with data scientists, software developers, and business
stakeholders to identify and solve machine learning problems that align with business
goals and objectives
- Who/role is responsible for this? - CORRECT ANSWER✔✔ML (Machine Learning)
Engineer
Communication in ___________ are held in order to show the results to the
stakeholders, scheduling in the time is essential. - CORRECT ANSWER✔✔meetings
Communication: Presenting complex data and analysis clearly and understandably to
stakeholders across different functions and levels of the organization; these
stakeholders can range from junior to senior levels, depending on their roles
- Who/role is responsible for this? - CORRECT ANSWER✔✔Decision
Scientist/Decision Analyst
Company X might use include surveys, interviews, observations, focus groups,
experiments, and secondary data analysis.
