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WGU Data-Driven-Decision-Making Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Probability & Statistical Inference | 20% | - Hypothesis testing, p-values, confidence intervals - Correlation vs. causation - Probability rules, distributions, expected value |
| Decision Models & Prescriptive Analytics | 15% | - Optimization, sensitivity analysis - Quality & process improvement tools - Decision trees, payoff matrices, expected value |
| Statistical Concepts & Descriptive Analytics | 25% | - Data visualization: charts, graphs, dashboards - Data types, measurement scales, sampling methods - Measures of central tendency, dispersion, distribution |
| Foundations of Data-Driven Decision Making | 20% | - Role of data in business decisions - Types of analytics: descriptive, predictive, prescriptive - Ethics, privacy, and data governance |
| Predictive Analytics & Regression | 20% | - Interpreting coefficients, R-squared, significance - Forecasting & trend analysis - Simple & multiple linear regression |
WGU VPC2Data-Driven Decision MakingC207 Sample Questions:
1. Why would a human resources department use both mean and median when doing a salary evaluation of a department?
A) A large difference between mean and median shows a miscalculation in the analysis.
B) A large difference between mean and median shows an abnormal standard deviation.
C) A large difference between mean and median shows that some employees need raises.
D) A large difference between mean and median shows there are outliers to assess.
2. What describes fact-based decision-making according to quality management principles?
Choose 2 answers.
A) Decisions foster trust in plans.
B) Decisions reduce external bias.
C) Decisions have a marginal effect on relationships with suppliers.
D) Decisions are based on the instincts of experienced leaders.
3. The U.S. Postal Service wants to know if local first-class mail is being delivered within two days of postmark.
Which key performance indicator (KPI) should the Postal Service use?
A) Incentive performance rate
B) On-time performance
C) Customer satisfaction
D) Employee morale index
4. For which situation could a scatter diagram be used?
A) Demonstrating a visual precedence of a prioritization matrix
B) Demonstrating a significant difference between the frequencies of two groups of data
C) Demonstrating a relationship between variables
D) Demonstrating a significant difference between the means of two groups of data
5. A student with a degree is presumed to already have a bachelor's degree. Which type of data does this represent?
A) Ordinal data
B) Nominal data
C) Ratio data
D) Interval data
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: A,B | Question # 3 Answer: B | Question # 4 Answer: C | Question # 5 Answer: B |

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