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WGU D491 (Introduction to Data Analytics D491) 2024 Questions With 100% Correct Answers!!

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WGU D491 (Introduction to Data Analytics D491) 2024 Questions With 100% Correct Answers!!

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229 Multiple choice questions

Term 1 of 229
What is the most appropriate analytics technique for predicting sales for the next quarter?

Bar chart

Tree map

Heat map

Regression analysis

Definition 2 of 229
BI is an explanatory tactic that looks at the present and past of a business's' operations to gauge
how it is doing (i.e. questions such as: What happened last quarter? Where is the problem? How
many units sold? etc).
Big data, on the other hand has this capability but can also be employed for predictive modelling,
forecasting, optimization, and statistical analysis (i.e. questions such as what if...? What will happen
next? What if these trends continue? Why is this happening? etc.).


BI - provides reports, dashboards, and queries on busines questions for the current period or the
past- uses highly structured data organized in rows and columns for accurate reporting
DS - uses data about the present to explore informed decision making about the future- tend to
use many types of data sources, including large or unconventional datasets

In which phase would the team expect to invest most of the project time? Why? Where
would the team expect to spend the least time?

Explain the difference between BI and Data Science.


What are association rules used for?

8. What is the definition of topic in topic models?

,Term 3 of 229
Which information tool is a possible source of data in a data analytics project?

Company logo designs

Consumer perception survey questions


Marketing slogans


Corporate information system

Term 4 of 229
What is the purpose of communicating data analytics results to stakeholders?

To demonstrate the value and impact of data analytics on business outcomes


To share technical details and methodologies used in the analysis

To persuade stakeholders to adopt new data analytics tools and techniques

To validate the accuracy and reliability of the data used in the analysis

Term 5 of 229
What role do stakeholders play in the project cycle?

Create the project plan and schedule

Define the project scope and objectives

Execute the project tasks


Provide guidance and feedback throughout the project

,Definition 6 of 229
the probability under the assumption of no effect or no difference (null hypothesis), of obtaining a
result equal to or more extreme than what was actually observed.

p-value

r-squared


z-score

f-statistic

Term 7 of 229
Which task is typically performed to handle outliers during the data preparation phase?

Normalization


Truncating extreme values

Data transformation

Missing data imputation

Term 8 of 229
Which role is required to provide requirements for a project?

Data visualization tools and presentation software

Provide guidance and feedback throughout the project

- Project sponsor
- business user
- data scientist

Analyzing and interpreting data to inform questions

, Term 9 of 229
What is data analytics?

The process of analyzing data to extract insights

The process of encrypting data to keep it secure

The process of storing data in a secure location for future use


The process of collecting data from various sources

Term 10 of 229
A company recently completed a data analytics project to identify the most energy-efficient
products to add to the catalog. The project team comprised business users, project sponsors,
analysts, data scientists, data engineers, and database administrators. Now, the team needs to
share their findings with various stakeholders. What should the data scientists, data engineer, and
database administrator do to share their findings?

Share code and provide implementation details

Manage project timelines and budgets

Assess the benefits and implications of findings

Create high-level presentations

Term 11 of 229
A data analyst working for a retail company has a team that analyzes customer purchasing
behavior and identifies a segment of high-value customers who have a high propensity to churn.
Now the analyst needs to communicate the results to the customer service department to
operationalize the insights and reduce customer churn. How does the communication of results
tie to the operationalize phase of data analytics?

By conducting further data analysis and exploration

By implementing personalized outreach to customers


By refining data collection processes

By training customer service representatives

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