My D204 WGU Study Set 2026 – Full Study Guide with Verified Questions and Answers 2026-02-25
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My D204 WGU Study Set
2026 – Full Study Guide
with Verified Questions and
Answers
Page 1
Guidehttps://www.stuvia.com/dashboard!@_)#*)(@$)($@*($@)($@*_ My D204 WGU Study Set 2026 – Full Study Guide with Verified Questions and Answers.pdf
,My D204 WGU Study Set 2026-02-25
Which of these is NOT a topic of interest for Discovery/Planning/Business Understanding?
A. Project Scope
B. Identify stakeholders and research questions/KPIs
C. Build a data pipeline (ETL)
D. Identify timeline, budget, and participants
C
What is a potential problem to consider in the planning phase?
A. Lack of clear focus on stakeholders, timeline, limitations, and budget
B. Quality and type of data may make access more difficult
C. Some cleaning techniques could dramatically change data/outcomes
D. Outliers not dealt with can cause problems with statistical models due to excessive variability.
A
In what phase does the analyst identify the stake holders and research questions?
Business Understanding/Planning/Discovery
Page 2 My D204 WGU Study Set.pdf
,My D204 WGU Study Set 2026-02-25
In what phase does the analyst deal with the following:
Gather/collect data from a variety of sources
Provide structure to data accessible via relational databases (SQL)
Build data pipeline (ETL)
Use of API to download data from an external source
Data acquisition
In what phase does the analyst deal with the following:
Fixing improperly formatted values
Dealing with duplicates, missing data, and outliers
Data reduction
Data cleaning/wrangling/scrubbing/munging
Page 3 My D204 WGU Study Set.pdf
, My D204 WGU Study Set 2026-02-25
In what phase does the analyst deal with the following:
Central Tendency/ Measures of center (e.g., mean, median, mode), variability (e.g., standard
deviations and quartiles) and distributions (e.g., normal, skewed, etc)
Identify basic correlations between variables
Pattern discovery
Data exploration/Exploratory Data Analysis(EDA)/Descriptive Statistics
In what phase does the analyst deal with the following:
Estimate/project future values or likelihood of an event.
Extend correlations found in EDA to mathematical models
Predict/determine output values based on input values
Cross-validation of predictive models to ensure accuracy.
Predictive Modeling/Data Modeling/Correlation based models/Regression models/Time Series
Page 4 My D204 WGU Study Set.pdf
*)#u)()@$+((+_@$_@+_)$$+_)+_$@)$@+_)@++)$+_$@)+_$)+_$$+_+_@$+_)
My D204 WGU Study Set
2026 – Full Study Guide
with Verified Questions and
Answers
Page 1
Guidehttps://www.stuvia.com/dashboard!@_)#*)(@$)($@*($@)($@*_ My D204 WGU Study Set 2026 – Full Study Guide with Verified Questions and Answers.pdf
,My D204 WGU Study Set 2026-02-25
Which of these is NOT a topic of interest for Discovery/Planning/Business Understanding?
A. Project Scope
B. Identify stakeholders and research questions/KPIs
C. Build a data pipeline (ETL)
D. Identify timeline, budget, and participants
C
What is a potential problem to consider in the planning phase?
A. Lack of clear focus on stakeholders, timeline, limitations, and budget
B. Quality and type of data may make access more difficult
C. Some cleaning techniques could dramatically change data/outcomes
D. Outliers not dealt with can cause problems with statistical models due to excessive variability.
A
In what phase does the analyst identify the stake holders and research questions?
Business Understanding/Planning/Discovery
Page 2 My D204 WGU Study Set.pdf
,My D204 WGU Study Set 2026-02-25
In what phase does the analyst deal with the following:
Gather/collect data from a variety of sources
Provide structure to data accessible via relational databases (SQL)
Build data pipeline (ETL)
Use of API to download data from an external source
Data acquisition
In what phase does the analyst deal with the following:
Fixing improperly formatted values
Dealing with duplicates, missing data, and outliers
Data reduction
Data cleaning/wrangling/scrubbing/munging
Page 3 My D204 WGU Study Set.pdf
, My D204 WGU Study Set 2026-02-25
In what phase does the analyst deal with the following:
Central Tendency/ Measures of center (e.g., mean, median, mode), variability (e.g., standard
deviations and quartiles) and distributions (e.g., normal, skewed, etc)
Identify basic correlations between variables
Pattern discovery
Data exploration/Exploratory Data Analysis(EDA)/Descriptive Statistics
In what phase does the analyst deal with the following:
Estimate/project future values or likelihood of an event.
Extend correlations found in EDA to mathematical models
Predict/determine output values based on input values
Cross-validation of predictive models to ensure accuracy.
Predictive Modeling/Data Modeling/Correlation based models/Regression models/Time Series
Page 4 My D204 WGU Study Set.pdf
