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WGU D491 Introduction to Analytics – Practice Questions and Correct Answers with Detailed Rationales and Comprehensive Course Review

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This document contains practice questions with correct answers and detailed rationales covering the core concepts of WGU D491 Introduction to Analytics. Topics include data analytics fundamentals, data collection, data visualization, descriptive and inferential analytics, key performance indicators (KPIs), business intelligence, statistical analysis, data-driven decision-making, dashboards, and ethical use of data. The material is designed to reinforce essential analytics concepts through structured practice questions and comprehensive answer explanations, making it an effective resource for objective assessments and final exam preparation.

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WGU - Introduction to Analytics - D491
WGU - Introduction to Analytics - D491
Study online at https://quizlet.com/_emfpij

1. Which role is responsible for project initiation and Project sponsor
providing the requirements for a project?

2. Which job position is primarily responsible for design- Data engineer
ing and constructing data pipelines within the field of
data analytics?

3. Which role in a data analytics project helps data scien- Data engineer
tists shape data for analysis?

4. Which role in a data analytics project provides exper- Data scientist
tise for analytical techniques?

5. Which skills are required by data scientists for con- Data wrangling skills
verting unstructured data to structured data in data
analytics projects?

6. Which skill must a business intelligence analyst pos- Data preparation
sess to collect and organize data?

7. Which project-related activity typically takes up the Data preparation
majority of a data analyst's time?

8. Which software do business intelligence analysts use Microsoft Excel
to perform their responsibilities?

9. What is a skill required of a data engineer? Maintaining databases

10. delete

11. Which group of stakeholders comprises the profes- Business users
sionals, such as line managers?

12. Project managers



, WGU - Introduction to Analytics - D491
WGU - Introduction to Analytics - D491
Study online at https://quizlet.com/_emfpij

Which stakeholder is primarily responsible for ensur-
ing the desired quality of the project?

13. Which stakeholder has access to essential tables or Database administrator
storage systems and guarantees the highest levels of
security in the data repository?

14. Why is it significant to establish failure criteria for a It helps the team deter-
data analytics project in the discovery phase? mine when it is best to ac-
cept the conclusions.

15. Which stakeholder extracts and transforms data dur- Data engineer
ing the discovery phase?

16. A person has been assigned to manage a project Data analysis, system inte-
to implement a company-wide customer relationship gration, and training
management (CRM) system. The CRM system aims to
centralize customer details, automate sales process-
es, and improve customer service.

What skills are crucial for the project team members
working on the CRM system implementation?

17. Why is formulating an initial hypothesis an integral It guides the subsequent
part of the discovery phase of the data analytics life- data collection, process-
cycle? ing, and analysis activities.

18. Who should be included as stakeholders in an analyt- Anyone who will benefit
ics project? from the project

19. Who offers suggestions on ideas to test as the team Data scientists
formulates hypotheses during the discovery phase of
a data analytics project?



, WGU - Introduction to Analytics - D491
WGU - Introduction to Analytics - D491
Study online at https://quizlet.com/_emfpij

20. Which activity occurs during the data preparation Understanding of data
phase of the data analytics lifecycle?

21. Which data visualization is most suitable for under- Line charts
standing the trend and progression of a variable over
time in the data preparation phase?

22. Which task is commonly performed to identify and ad- Conducting data profiling
dress data quality issues during the data preparation
phase?

23. Which common data cleaning task is used to address Imputation
the missing data in a data set?

24. Which task is typically performed to handle outliers Truncating extreme values
during the data preparation phase?

25. A data analyst at a retail company is provided with a Exploring available data to
large dataset containing sales transactions, customer understand its character-
information, and product details. The analyst is tasked istics and suitability
with preparing the data for analysis and modeling.

Which activity would the analyst perform during the
data preparation phase?

26. Which activity is performed during the model plan- Selecting relevant features
ning phase of a data analysis project? for modeling

27. Which programming language is primarily used for R
statistical analysis and data manipulation in the model
planning phase?

28. Naive Bayes

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Subido en
2 de agosto de 2026
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