WGU D467 EXPLORING DATA OA EXAM
2025. NEWEST ACTUAL EXAM WITH
ACCURATE COMPLETE QUESTIONS AND
DETAILED ANSWERS GRADED A | BRAND
NEW 2025-2026 UPDATE!!!
An analyst needs to show the geographic distribution of customers in the United
States by region. Which visual representation should this analyst use?
- CORRECT ANS>>Charts
A data professional makes a change to a file. Then, they ask a colleague to evaluate
the change to identify any potential issues. What does this scenario describe?
- CORRECT ANS>>Code review
A team is tasked with determining how many customers have made a purchase in
the past month. Using a pivot table in Google Sheets, what function will total the
number of non- empty sales in the purchase date column of its customer
database?
- CORRECT ANS>>CountA
An analyst used a column of a table to uniquely identify each record within a table.
Which tool did they use?
- CORRECT ANS>>Primary key
Which tool is used by data analysts to store and organize data, making it easier for
them to manage and access information?
- CORRECT ANS>>Database
,Which type of structured data does an analyst use?
- CORRECT ANS>>Store inventory
What is an example of conceptual data modelling that an analyst uses?
- CORRECT ANS>>Defining the business requirements for a new database
What leads to confirmation bias in data collection?
- CORRECT ANS>>People search to verify preexisting beliefs.
Before analysis, a company collects data from countries that use different date
formats. Which of the following actions would improve the data integrity?
- CORRECT ANS>>Change all of the dates to the same format
If you have to complete your analysis with insufficient data, how should you
address this limitation?
- CORRECT ANS>>Identify trends with the available data
A data analyst wants to find out how many middle school students in Helsinki have
laptops. It is unlikely that they can survey every middle schooler in the city.
Instead, they survey enough students to represent all middle schoolers. This
describes what data analytics concept?
- CORRECT ANS>>Using a sample
How does an analyst ensure that a data source is reliable?
- CORRECT ANS>>It is accurate, complete, and unbiased information.
How does an analyst apply the principle of consent to ethics and privacy in data
collection?
- CORRECT ANS>>By disclosing how and why the data will be used before the
survey
, Which element of a Notepad file would be considered data as opposed to
underlying metadata?
- CORRECT ANS>>File contents
What should an analyst consider at the start of data collection to reduce errors?
- CORRECT ANS>>Bias and fairness
A data analyst knows there are some nulls in their database table. They want to
save time when making calculations by excluding these nulls. Which SQL function
syntax can they use in their query to return non-null values for one or more fields?
- CORRECT ANS>>COALESCE (product, product code)
A data analyst discovers that their database has recognized product price data as
text strings. What SQL function can the analyst use to convert the text strings to
floats?
- CORRECT ANS>>Cast
How does an analyst apply data ethics to privacy and collection?
- CORRECT ANS>>By using the collected data responsibly
How does an analyst apply the principle of ownership to ethics and privacy in data
collection?
- CORRECT ANS>>Individuals who create the data should own it.
What is an example of administrative metadata for a digital file?
- CORRECT ANS>>File permission
What is an acceptable syntax for the SELECT keyword in MySQL?
- CORRECT ANS>>select
2025. NEWEST ACTUAL EXAM WITH
ACCURATE COMPLETE QUESTIONS AND
DETAILED ANSWERS GRADED A | BRAND
NEW 2025-2026 UPDATE!!!
An analyst needs to show the geographic distribution of customers in the United
States by region. Which visual representation should this analyst use?
- CORRECT ANS>>Charts
A data professional makes a change to a file. Then, they ask a colleague to evaluate
the change to identify any potential issues. What does this scenario describe?
- CORRECT ANS>>Code review
A team is tasked with determining how many customers have made a purchase in
the past month. Using a pivot table in Google Sheets, what function will total the
number of non- empty sales in the purchase date column of its customer
database?
- CORRECT ANS>>CountA
An analyst used a column of a table to uniquely identify each record within a table.
Which tool did they use?
- CORRECT ANS>>Primary key
Which tool is used by data analysts to store and organize data, making it easier for
them to manage and access information?
- CORRECT ANS>>Database
,Which type of structured data does an analyst use?
- CORRECT ANS>>Store inventory
What is an example of conceptual data modelling that an analyst uses?
- CORRECT ANS>>Defining the business requirements for a new database
What leads to confirmation bias in data collection?
- CORRECT ANS>>People search to verify preexisting beliefs.
Before analysis, a company collects data from countries that use different date
formats. Which of the following actions would improve the data integrity?
- CORRECT ANS>>Change all of the dates to the same format
If you have to complete your analysis with insufficient data, how should you
address this limitation?
- CORRECT ANS>>Identify trends with the available data
A data analyst wants to find out how many middle school students in Helsinki have
laptops. It is unlikely that they can survey every middle schooler in the city.
Instead, they survey enough students to represent all middle schoolers. This
describes what data analytics concept?
- CORRECT ANS>>Using a sample
How does an analyst ensure that a data source is reliable?
- CORRECT ANS>>It is accurate, complete, and unbiased information.
How does an analyst apply the principle of consent to ethics and privacy in data
collection?
- CORRECT ANS>>By disclosing how and why the data will be used before the
survey
, Which element of a Notepad file would be considered data as opposed to
underlying metadata?
- CORRECT ANS>>File contents
What should an analyst consider at the start of data collection to reduce errors?
- CORRECT ANS>>Bias and fairness
A data analyst knows there are some nulls in their database table. They want to
save time when making calculations by excluding these nulls. Which SQL function
syntax can they use in their query to return non-null values for one or more fields?
- CORRECT ANS>>COALESCE (product, product code)
A data analyst discovers that their database has recognized product price data as
text strings. What SQL function can the analyst use to convert the text strings to
floats?
- CORRECT ANS>>Cast
How does an analyst apply data ethics to privacy and collection?
- CORRECT ANS>>By using the collected data responsibly
How does an analyst apply the principle of ownership to ethics and privacy in data
collection?
- CORRECT ANS>>Individuals who create the data should own it.
What is an example of administrative metadata for a digital file?
- CORRECT ANS>>File permission
What is an acceptable syntax for the SELECT keyword in MySQL?
- CORRECT ANS>>select
