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OA ASSESSMENT EXAM
WGU D492 Data Analytics Applications Latest 2026 OA
Assessment Exam questions and answers A+ Graded
Which of the following measures of central tendency is the average of a set of numbers?
Mean
Which of the following are both considered continuous data?
Age & Personal Best 5K Run Time
Hank is a veterinarian working at a horse rescue. He must combine data from two different data sets,
medical evaluations from horses on his farm and medical evaluations from horses who are soon to be on
the farm. He cannot input data line-by-line because the evaluations are lengthy and cover the full
lifespan of the horses. Which of the following would best meet his goal with the data?
Appending
Demitry is preparing for his Data+ exam that he will take next month. In order to prepare, he studied the
exam terms and definitions. Which of the following is defined as a proven relationship between two
variables?
Casual Relationship
Robert is a data analyst preparing a dashboard to deliver a presentation to his supervisor on sales at
Dion Suit and Tie Co. He'll likely display the data with automatically applied views and visuals. What are
these known as?
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Hard-coded filter
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, WGU D492 DATA ANALYTICS APPLICATIONS LATEST 2026
07/26/2026
OA ASSESSMENT EXAM
Data can become invalid for many reasons. Which of the following situations describes data which has
been obtained through a survey with leading questions and biased answers?
Question Invalidation
Carl is unsure which following term is useful for producing information to help analyze a random sample
and categorical data. Please assist him and select the best answer that matches this description.
Chi square test
This test produces the chi-square statistic and is useful when analyzing data from a random sample and
working with a categorical variable, like race or gender.
A chi-square test
This compares the size of the difference between an expected result and the actual result. This
measures how a model compares to the actual data.
A chi-square statistic
This is a type of chi-square test that tests a single variable.
A goodness of fit test
This is a type of chi-square test that tests is used to test multiple variables.
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A test of independence
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, WGU D492 DATA ANALYTICS APPLICATIONS LATEST 2026
07/26/2026
OA ASSESSMENT EXAM
Kyrie is examining his company's sales database. He performs a calculation to determine the strength of
the relationship between increased advertising spending and total sales for the company. His calculation
returns a value between 0 and 1. What is this measurement known as?
R value
This is a calculation used to measure a linear relationship between data points and returns an r value
that is plus or minus 1 to determine the strength of the relationship.
Pearson's correlation coefficient
A/An ________ that is close to 1 indicates a strong correlation between values and a value of or close to
0 means indicates that there is no correlation.
R value
This is the statistical association between two or more equal variables. This does not tell an analyst that
a variable influences another, but it does indicate that if one variable changes, the other variable
changes as well.
Correlation
This proves that a variable has an effect on another variable.
Causal relationship
Angel is a data analyst for an investment firm. She must deliver a presentation on the size of
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investments the firm has made in different geographic areas. Which of the following would best suit her
needs?
Dot map
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, WGU D492 DATA ANALYTICS APPLICATIONS LATEST 2026
07/26/2026
OA ASSESSMENT EXAM
There are two styles of maps that are commonly used to display geographic data.
dot map & filled map
This uses markers to note specific spots on the map and the filled map fills in the borders of a location.
dot map
This blends the attributes of both a dot map and a filled map and is overlaid to display more
information.
layered map
This is used to show performance over time and visualizes how money flows from a starting balance to
an ending balance. For example, this can be used for tracking operating expenses, cash flow, or growth
in customers investments.
waterfall chart
Shawn is a data custodian at Dion Cloud Computing Corporation. He must ensure all members of his
organization have access to, and understand data policies at the company. This is known as which of the
following?
Transparency
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This ensures all members of an organization have access to data governance policies and understand
their function.
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