WGU D204 EXAM QUESTIONS AND 100% CORRECT
ANSWERS A+ RATED 2025
What questions will data analytics consider improving 10% market
share value to open new store in a different location?
a. Get list of geographic areas
b. Reduce staff pay by 10%
c. Check compatible market value
d. None of the above: C Check compatible market value
A data set has K variables, and the classifying method has the
following steps: compare levels on nearby data, assign a new case to a
category of nearby beta, locate the case in a k-dimensional space, in
which order should the steps be applied
a. Assign compare locate
b. Compare assign locate
c. Locate compare assign
d. Locate assign compare: c. Locate compare assign
In which phase of the data analytics life cycle does an analyst build a
graph?
a.Data exploration
b.Discovery
c.Predictive modeling
d.Data acquisition: a.Data exploration
An analyst applies a statistical formula to obtain the average
temperature for a city over the last 20 years. Which phase of the data
analytics life cycle is represented by this activity?
a.Discovery
b.Exploration
c.Modeling
d.Reporting: b.Exploration
,An analyst has been asked to define variables in a dataset that may
contain missing values. Which activity of the analytics life cycle is
represented?
a. Data collection
b. Data cleaning
c.Transforming improperly text
d.Disqualifying data sources: b.Data cleaning
Which activity does an analyst perform in the discovery phase of the
data analytics life cycle?
a.Collecting data
b.Cleaning data
c.Identifying outliers
d.Defining business goals: d.Defining business goals
During which phase in the data analytics life cycle would a churn
analysis be performed?
a. Data cleaning churn
b. Data acquisition
c.Predictive analysis
d.Representation and reporting: c.Predictive analysis
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.Relational structures of tables
d.The SQL queries of data within the tables: d.The SQL queries of data
within the tables
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: c. Verification through visualization
, 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: a. To
minimize interruptions from maintenance shutdowns
What is the necessary requirement when collecting data from different
data sources
a. Data must be easy to understand
b. Data must have defined structure
c. Data must have great number of variable
d. Data must have features related to business goals: d.Data must have
features related to business goals
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.: d.
The model is developed before the research question is known.
Why might a data analyst resample a data set with replacement data in
a data mining project?
a. Misidentification of causation
b. Wrong variables chosen for analyzation
c. Too little data for training and testing data sets
ANSWERS A+ RATED 2025
What questions will data analytics consider improving 10% market
share value to open new store in a different location?
a. Get list of geographic areas
b. Reduce staff pay by 10%
c. Check compatible market value
d. None of the above: C Check compatible market value
A data set has K variables, and the classifying method has the
following steps: compare levels on nearby data, assign a new case to a
category of nearby beta, locate the case in a k-dimensional space, in
which order should the steps be applied
a. Assign compare locate
b. Compare assign locate
c. Locate compare assign
d. Locate assign compare: c. Locate compare assign
In which phase of the data analytics life cycle does an analyst build a
graph?
a.Data exploration
b.Discovery
c.Predictive modeling
d.Data acquisition: a.Data exploration
An analyst applies a statistical formula to obtain the average
temperature for a city over the last 20 years. Which phase of the data
analytics life cycle is represented by this activity?
a.Discovery
b.Exploration
c.Modeling
d.Reporting: b.Exploration
,An analyst has been asked to define variables in a dataset that may
contain missing values. Which activity of the analytics life cycle is
represented?
a. Data collection
b. Data cleaning
c.Transforming improperly text
d.Disqualifying data sources: b.Data cleaning
Which activity does an analyst perform in the discovery phase of the
data analytics life cycle?
a.Collecting data
b.Cleaning data
c.Identifying outliers
d.Defining business goals: d.Defining business goals
During which phase in the data analytics life cycle would a churn
analysis be performed?
a. Data cleaning churn
b. Data acquisition
c.Predictive analysis
d.Representation and reporting: c.Predictive analysis
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.Relational structures of tables
d.The SQL queries of data within the tables: d.The SQL queries of data
within the tables
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: c. Verification through visualization
, 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: a. To
minimize interruptions from maintenance shutdowns
What is the necessary requirement when collecting data from different
data sources
a. Data must be easy to understand
b. Data must have defined structure
c. Data must have great number of variable
d. Data must have features related to business goals: d.Data must have
features related to business goals
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.: d.
The model is developed before the research question is known.
Why might a data analyst resample a data set with replacement data in
a data mining project?
a. Misidentification of causation
b. Wrong variables chosen for analyzation
c. Too little data for training and testing data sets
