100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Data Analytics D204 WGU Exam 2024: New Version Update with Accurate Answers | Guaranteed Pass $21.99   Add to cart

Exam (elaborations)

Data Analytics D204 WGU Exam 2024: New Version Update with Accurate Answers | Guaranteed Pass

 2 views  0 purchase
  • Course
  • Data Analytics
  • Institution
  • Data Analytics

Data Analytics D204 WGU Exam 2024: New Version Update with Accurate Answers | Guaranteed Pass

Preview 3 out of 30  pages

  • October 26, 2024
  • 30
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Data Analytics
  • Data Analytics
avatar-seller
HesiAtiExpert
Data Analytics D204 WGU EXAM 2024
NEW VERSION UPDATE WITH
ACCURATE ANSWERS GUARANTEED
PASS.
An analyst applies a statistical formula to obtain the average temperature for a city over
the last 50 years.Which phase of the data analytics life cycle is represented by this
activity?A.
A. Data acquisition
B. Exploratory data analysis
C. Predictive modeling
D. Data reporting
- Ans - B.

An analyst has been tasked with defining data columns that could contain null
values.Which activity of the data acquisition phase is represented?

A. Collecting data
B. Disqualifying data sources
C. Detecting missing values
D. Transforming improperly formatted text - Ans - C.

Which activity in the data analytics life cycle occurs during the data acquisition phase
and requires the most time and effort from the data analyst?
A. Selecting the data sources
B. Importing data into a database
C. Cleaning data
D. Defining goals - Ans - C.

What might be developed by data analysts when acquiring data from a data
warehouse?
A. The procedures for extracting files from the data warehouse
B. The procedures for updating tables in the data warehouse
C. The relational structure of tables
D. The SQL queries of data within the tables - Ans - D. The SQL queries of data within
the tables


Two tools which help to promote effective communication during the testing phase of
software development.

A. Not enough variables will be considered in the analysis.

,B. The outcome of the analysis will be misaligned to business needs.
C. The analyst will lack insight into the structure of the data set.
D. The model will be built using the wrong data set. - Ans - C.

Which aspect of data exploration occurs when an analyst writes code to compile a bar
graph of dog food sales per month?
A. Performance of a correlation analysis
B. Analysis of data anomalies
C. Verification through visualization
D. Determination of variabilities - Ans - C.

An oil company uses robots and sensors to detect how pipeline corrosion changes over
time. The collected data is then used in a predictive model that estimates when a pipe
should be replaced.How does the predictive model serve this oil company?

A. To minimize interruptions from maintenance shutdowns
B. To minimize the need for workforce safety training
C. To improve compliance with pipeline construction standards
D. To improve compliance with pipeline disposal standards - Ans - A.

During which phase in the data analytics life cycle would a churn analysis be
performed? - Ans - Predictive analysis

Which mistake is commonly made during the predictive analytics phase?
A. The data are separated into different sets.
B. The variables are separated into response and independent variables.
C. The data are prepared before the model is developed.
D. The model is developed before the research question is known. - Ans - D.

Why might a data analyst resample a data set with replacement data in a data mining
project?
A. Skewed data resulting from outliers
B. Too little data for training and testing data sets
C. Wrong variables chosen for analyzation
D. Misidentification of causation due to correlation - Ans - B.
Which activity does an analyst perform in the discovery phase of the data analytics life
cycle?

A. Identifying business needs
B. Identifying outliers
C. Cleaning data
D. Collecting data - Ans - A

In which phase of the data analytics life cycle does an analyst build a histogram?

A. Data acquisition

, B. Data exploration
C. Discovery
D. Predictive modeling - Ans - B

A data analyst has identified combinations of sales transactions that frequently occur
together in data over the past 5 years.Which phase of the data analytics life cycle is
represented by this analysis?

A. Data acquisition
B. Representation and reporting
C. Data mining
D. Predictive modeling - Ans - C.

An analyst realizes that the data set has been reduced significantly, resulting in sample
sizes that are too small.In which phase of the data analytics life cycle did this likely
occur?

A. Data exploration
B. Data modeling
C. Data mining
D. Data discovery - Ans - C.

What strategy will contribute to effective data representation and reporting?

A. Creating a new training data set
B. Selecting data for a prediction model
C. Excluding unrelated data
D. Extracting data from source repositories - Ans - C.

What are two purposes of the reporting phase of the data analytics life cycle?

A. Provide the conclusions from the analysis in an engaging manner

B. Provide a tool for decision-makers to import and analyze more data

C. Provide actionable insights that can inform decision-making

D. Provide an automated way for decision-makers to test their own models - Ans - A &
C

During which phase of the data analytics life cycle does an analyst create a story to
report data? - Ans - Data reporting

What is a common duty of a database administrator?
A. Set project timelines, milestones, and goals
B. Acquire funding for data analytics projects

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller HesiAtiExpert. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $21.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

81298 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$21.99
  • (0)
  Add to cart