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WGU Data-Driven-Decision-Making Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Probability & Statistical Inference | 20% | - Correlation vs. causation - Hypothesis testing, p-values, confidence intervals - Probability rules, distributions, expected value |
| Topic 2: Statistical Concepts & Descriptive Analytics | 25% | - Data visualization: charts, graphs, dashboards - Measures of central tendency, dispersion, distribution - Data types, measurement scales, sampling methods |
| Topic 3: Predictive Analytics & Regression | 20% | - Simple & multiple linear regression - Forecasting & trend analysis - Interpreting coefficients, R-squared, significance |
| Topic 4: Foundations of Data-Driven Decision Making | 20% | - Types of analytics: descriptive, predictive, prescriptive - Ethics, privacy, and data governance - Role of data in business decisions |
| Topic 5: Decision Models & Prescriptive Analytics | 15% | - Decision trees, payoff matrices, expected value - Quality & process improvement tools - Optimization, sensitivity analysis |
WGU VPC2Data-Driven Decision MakingC207 Sample Questions:
Research data indicate 95% confidence in a study in which subjects who were shown a product advertisement exhibited brand awareness compared to a control group who did not see the advertisement.
What can be concluded from this study?
- A. The advertisement was effective in building brand awareness.
- B. The advertisement was effective in increasing sales.
- C. Ninety-five percent of the subjects liked the brand.
- D. Five percent of the subjects did not like the advertisement.
Correct Answer: A 🗳️
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A county government must increase trust among voters that their tallying machines are accurately calibrated to count their votes. Each department is tasked with creating an online marketing campaign; however, the budget for these campaigns is limited.
How can the county apply data analytic approaches to allocate funds to each department?
- A. By measuring the number of voter complaints per department
- B. By surveying the county controllers
- C. By surveying employees on polling strategies
- D. By benchmarking the voter turnout rates in each county
Correct Answer: A 🗳️
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What does big data include?
- A. Both structured and unstructured data
- B. Information that can be analyzed with spreadsheets
- C. Powerful extraction tools
- D. Inferential statistics for large companies
Correct Answer: A 🗳️
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A researcher wants to estimate the average wholesale price of a gallon of gas in the United States. Several gas station owners along the East Coast are asked what price they pay wholesale for a gallon of gas. The researcher then averages these values for the sample mean price of a gallon of gas. Which problem would be discovered if this researcher's work were evaluated?
- A. There is conscious bias in the data.
- B. The sample data are not representative of the population.
- C. There is response bias in the data.
- D. There is faulty calibration in the data collection.
Correct Answer: B 🗳️
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A company runs a regression analysis to identify the impact of volume on demand, which can be shown as an equation y = 50x + 10. Which volume is needed to produce a demand of 10,510?
- A. 525,610
- B. 210
- C. 208
- D. 525
Correct Answer: B 🗳️
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