WGU C207 OA ACTUAL EXAM REVIEW 2026 LATEST
EDITION 100 QUESTIONS AND CORRECT ANSWERS WITH
RATIONALES
1. For companies to attract and retain their best customers they need a complete portrait of who
they are. To develop this portrait companies turn to:
A. Accounting
B. Auditing
C. Analytics
D. Forecasting
Correct Answer: C
Rationale: Analytics enables organizations to analyze customer data to better understand behaviors,
preferences, and retention drivers.
2. A manufacturer wants to maximize factory output while minimizing labor costs. What type of
analytics should they use?
A. Descriptive
B. Predictive
C. Diagnostic
D. Prescriptive
Correct Answer: D
Rationale: Prescriptive analytics recommends optimal actions under constraints, such as maximizing
output while minimizing cost.
3. What type of data error is constant within a data set and often caused by faulty equipment or
bias?
A. Random
B. Sampling
C. Systematic
D. Omission
Correct Answer: C
Rationale: Systematic errors consistently skew results in the same direction due to measurement
bias or equipment issues.
4. An educator develops a standardized test using only Ohio students but plans to use it nationally.
What type of error may exist?
A. Omission
B. Sampling Error
C. Measurement Bias
D. Random Error
,Correct Answer: C
Rationale: The test may not measure ability equally across different populations, leading to biased
results.
5. A city surveys immigrants only in English to determine national origin. What error may be
present?
A. Measurement
B. Sampling
C. Omission
D. Random
Correct Answer: C
Rationale: Non-English-speaking respondents may be excluded, omitting key data from the
population.
6. Which of the following is NOT a characteristic of Big Data?
A. High volume
B. High velocity
C. High variety
D. Can be analyzed with traditional spreadsheets
Correct Answer: D
Rationale: Big Data typically exceeds the processing capability of traditional spreadsheet tools.
7. Which TWO are part of the framing stage of the Davenport-Kim model?
A. Communicating results
B. Determine the scope of the problem
C. Solving the problem
D. Review of previous findings
Correct Answers: B, D
Rationale: Framing focuses on defining the problem and understanding prior research before
analysis begins.
8. In an experimental study on blood glucose before and after exercise, which TWO elements are
required?
A. Sample bias
B. Treatment procedures
C. Experimental response
D. Confidence interval
Correct Answers: B, C
, Rationale: Experiments require clearly defined treatments and measurable responses.
9. Runners cover 26.2 miles in the Olympics marathon. What level of measurement is
this?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Correct Answer: D
Rationale: Ratio data has a true zero and allows meaningful comparisons of magnitude.
10. What level of measurement describes the type of cars produced in a Ford factory?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Correct Answer: A
Rationale: Nominal data categorizes items without any inherent order.
11. What level of measurement is represented by the 10 best cities in the U.S. to retire
in?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Correct Answer: B
Rationale: Ordinal data provides ranking but not equal intervals between ranks.
12. What level of measurement are women’s dress sizes (2, 4, 6, etc.)?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Correct Answer: C
Rationale: Interval data has ordered values with equal intervals but no true zero.
EDITION 100 QUESTIONS AND CORRECT ANSWERS WITH
RATIONALES
1. For companies to attract and retain their best customers they need a complete portrait of who
they are. To develop this portrait companies turn to:
A. Accounting
B. Auditing
C. Analytics
D. Forecasting
Correct Answer: C
Rationale: Analytics enables organizations to analyze customer data to better understand behaviors,
preferences, and retention drivers.
2. A manufacturer wants to maximize factory output while minimizing labor costs. What type of
analytics should they use?
A. Descriptive
B. Predictive
C. Diagnostic
D. Prescriptive
Correct Answer: D
Rationale: Prescriptive analytics recommends optimal actions under constraints, such as maximizing
output while minimizing cost.
3. What type of data error is constant within a data set and often caused by faulty equipment or
bias?
A. Random
B. Sampling
C. Systematic
D. Omission
Correct Answer: C
Rationale: Systematic errors consistently skew results in the same direction due to measurement
bias or equipment issues.
4. An educator develops a standardized test using only Ohio students but plans to use it nationally.
What type of error may exist?
A. Omission
B. Sampling Error
C. Measurement Bias
D. Random Error
,Correct Answer: C
Rationale: The test may not measure ability equally across different populations, leading to biased
results.
5. A city surveys immigrants only in English to determine national origin. What error may be
present?
A. Measurement
B. Sampling
C. Omission
D. Random
Correct Answer: C
Rationale: Non-English-speaking respondents may be excluded, omitting key data from the
population.
6. Which of the following is NOT a characteristic of Big Data?
A. High volume
B. High velocity
C. High variety
D. Can be analyzed with traditional spreadsheets
Correct Answer: D
Rationale: Big Data typically exceeds the processing capability of traditional spreadsheet tools.
7. Which TWO are part of the framing stage of the Davenport-Kim model?
A. Communicating results
B. Determine the scope of the problem
C. Solving the problem
D. Review of previous findings
Correct Answers: B, D
Rationale: Framing focuses on defining the problem and understanding prior research before
analysis begins.
8. In an experimental study on blood glucose before and after exercise, which TWO elements are
required?
A. Sample bias
B. Treatment procedures
C. Experimental response
D. Confidence interval
Correct Answers: B, C
, Rationale: Experiments require clearly defined treatments and measurable responses.
9. Runners cover 26.2 miles in the Olympics marathon. What level of measurement is
this?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Correct Answer: D
Rationale: Ratio data has a true zero and allows meaningful comparisons of magnitude.
10. What level of measurement describes the type of cars produced in a Ford factory?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Correct Answer: A
Rationale: Nominal data categorizes items without any inherent order.
11. What level of measurement is represented by the 10 best cities in the U.S. to retire
in?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Correct Answer: B
Rationale: Ordinal data provides ranking but not equal intervals between ranks.
12. What level of measurement are women’s dress sizes (2, 4, 6, etc.)?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
Correct Answer: C
Rationale: Interval data has ordered values with equal intervals but no true zero.
