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WGU Data-Driven-Decision-Making Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Decision Making Models | - Decision trees and expected value analysis - Risk and uncertainty in decision-making |
| Topic 2: Probability and Statistical Inference | - Sampling methods and sampling error - Probability concepts and distributions |
| Topic 3: Regression and Correlation Analysis | - Interpreting correlation and causation - Linear regression modeling |
| Topic 4: Data Fundamentals and Business Analytics | - Data types and data collection methods - Descriptive statistics (mean, median, variance, standard deviation) |
| Topic 5: Hypothesis Testing | - Null and alternative hypotheses - t-tests, chi-square tests, and significance testing |
WGU VPC2Data-Driven Decision MakingC207 Sample Questions:
What are random errors caused by?
- A. An instrument that needs calibration
- B. Respondents favoring certain outcomes
- C. Unpredictable fluctuations in readings
- D. Biased data
Correct Answer: C 🗳️
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Which step in the plan-do-check-act cycle is described as analyzing the results of an experiment and deciding whether those results can be improved?
- A. Check
- B. Act
- C. Do
- D. Plan
Correct Answer: A 🗳️
Explanation: Only visible for Test4Cram members. You can sign-up / login (it's free).
A sample of 1,020 people was asked how many minutes they exercise on a typical day. The data were plotted and determined to be skewed left with a mean of 44.75 minutes.
Which boxplot correctly graphs this data?
- A. Option A
- B. Option D
- C. Option B
- D. Option C
Correct Answer: C 🗳️
A school board has nine voting members. Five members need to be chosen each year for the finance committee. Why should the combination technique be used when selecting committee members?
- A. Because the selection order of committee members is not important
- B. Because there is not a correlation between committee member meeting attendance and selection
- C. Because the selection order of committee members is important
- D. Because there is a correlation between committee member meeting attendance and selection
Correct Answer: A 🗳️
Explanation: Only visible for Test4Cram members. You can sign-up / login (it's free).
Which two characteristics must a researcher consider concerning data quality when ensuring that an analysis is based on a clean data set?
Choose 2 answers.
- A. The data elements must be unique.
- B. The data cannot contain outliers.
- C. The age of the data does not matter if the data are complete.
- D. The data must be relevant.
Correct Answer: A,D 🗳️
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