WGU D204 STUDY SET
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,Question 1
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
Correct Answer
C
Question 2
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.
Correct Answer
A
Question 3
In what phase does the analyst identify the stake holders and research questions?
Correct Answer
Business Understanding/Planning/Discovery
Question 4
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
Correct Answer
Data acquisition
Question 5
In what phase does the analyst deal with the following:
Fixing improperly formatted values
Dealing with duplicates, missing data, and outliers
Data reduction
Correct Answer
Data cleaning/wrangling/scrubbing/munging
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, Question 6
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
Correct Answer
Data exploration/Exploratory Data Analysis(EDA)/Descriptive Statistics
Question 7
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.
Correct Answer
Predictive Modeling/Data Modeling/Correlation based models/Regression models/Time Series
Question 8
In what phase does the analyst deal with the following:
Creating training and testing datasets to build models from
Identify/detect patterns
Determine if groups (clusters) exist in data
Classify data into groups
Create models that "learn" and improve (e.g., machine/deep learning, AI, etc)
Correct Answer
Data Mining/Machine Learning/AI/Supervised, Unsupervised Models
Question 9
In what phase does the analyst deal with the following:
Tell a story with data
Provide a summary of analytic analysis
Provide insights to stakeholders
Create insightful graphs that showcase trends and forecasts
Correct Answer
Reporting and visualization/Dashboards
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90+ (2025-2026 Updated) Solved
Exams + 100% Verified Solutions |
Complete Q&A
100% Guarantee Pass
✓ This Exam contains: WGU D204 Study Set
✓ 100% Accurate Questions and Answers
✓ 100% Guarantee Pass - Verified by Experts
✓ Each Question Includes The Correct Answer
✓ Expert-Verified
Trusted by thousands of students and professionals worldwide Page 1 of 20
,Question 1
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
Correct Answer
C
Question 2
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.
Correct Answer
A
Question 3
In what phase does the analyst identify the stake holders and research questions?
Correct Answer
Business Understanding/Planning/Discovery
Question 4
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
Correct Answer
Data acquisition
Question 5
In what phase does the analyst deal with the following:
Fixing improperly formatted values
Dealing with duplicates, missing data, and outliers
Data reduction
Correct Answer
Data cleaning/wrangling/scrubbing/munging
Trusted by thousands of students and professionals worldwide Page 2 of 20
, Question 6
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
Correct Answer
Data exploration/Exploratory Data Analysis(EDA)/Descriptive Statistics
Question 7
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.
Correct Answer
Predictive Modeling/Data Modeling/Correlation based models/Regression models/Time Series
Question 8
In what phase does the analyst deal with the following:
Creating training and testing datasets to build models from
Identify/detect patterns
Determine if groups (clusters) exist in data
Classify data into groups
Create models that "learn" and improve (e.g., machine/deep learning, AI, etc)
Correct Answer
Data Mining/Machine Learning/AI/Supervised, Unsupervised Models
Question 9
In what phase does the analyst deal with the following:
Tell a story with data
Provide a summary of analytic analysis
Provide insights to stakeholders
Create insightful graphs that showcase trends and forecasts
Correct Answer
Reporting and visualization/Dashboards
Trusted by thousands of students and professionals worldwide Page 3 of 20
