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WGU C207 DATA DRIVEN DECISION-MAKING EXAM
AND STUDY GUIDE 500 QUESTIONS AND VERIFIED
SOLUTIONS LATEST UPDATE THIS YEAR
QUESTION: Several missing values in a particular field in a dataset were observed. The
likelihood of a record having a missing value is correlated to another variable in the dataset.
Which two types of error might be introduced into the dataset if the removed record included
missing values?
a. Systematic error
b. Omission error
c. Random error
d. Typographical error - ANSWER-a, b
QUESTION: A healthcare study follows a particular sample over time to identify how the health
habits of teenagers impact their likelihood of acquiring various diseases later in their life in the
hope that the healthcare organization will be able to create early prevention programs. Which
type of research design does this study describe?
a. Double blind study
b. Systematic study
c. Cohort study
d. Experimental study - ANSWER-c
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QUESTION: A company is trying to increase its online sales revenue by improving its e-mail
advertising campaign for repeat customers as well as new customers. Which two variables
would be used in determining a campaign to maximize revenue gain?
a. Number of purchases per e-mail
b. E-mail content
c. Spending per purchase
d. Cost per e-mail - ANSWER-a, c
QUESTION: This statistical procedure compares outcomes of different drug testing results
a. Anova
b. Correlation
c. Control Charts - ANSWER-a
QUESTION: This statistical procedure is used to help understand effective marketing and to
spend advertising dollars efficiently
a. Anova
b. Correlation
c. Control Charts - ANSWER-b
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QUESTION: This statistical procedure monitors production process
a. Anova
b. Correlation
c. Control Charts - ANSWER-c
Analytics is a broad term that refers to a variety of tools that inform managerial decisions.
Which term can be used to describe managerial decisions?
a. Prescriptive
b. Predictive
c. Pareto chart
d. Biased - ANSWER-a
QUESTION: What are two reasons for the increasing use of analytics in organizational decision
making?
a. Relatively lower cost of computer storage
b. Lower availability of statistical experts
c. Higher cost of obtaining data
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d. Higher computer processing power - ANSWER-a, d
QUESTION: In what way does probability theory inform decision-making for managers?
a. By quantifying risk
b. By quantifying data
c. By quantifying quality
d. By quantifying costs - ANSWER-a
QUESTION: Which type of data are the Olympic medals of gold, silver, and bronze examples of?
a. Nominal data
b. Ordinal data
c. Interval data
d. Ratio data - ANSWER-b
QUESTION: What are two aspects of data quality management?
a. It calculates spurious data.
b. It reduces the amount of incomplete data.
c. It monitors data input rates.
d. It cleans data. - ANSWER-b, d
WGU C207 DATA DRIVEN DECISION-MAKING EXAM
AND STUDY GUIDE 500 QUESTIONS AND VERIFIED
SOLUTIONS LATEST UPDATE THIS YEAR
QUESTION: Several missing values in a particular field in a dataset were observed. The
likelihood of a record having a missing value is correlated to another variable in the dataset.
Which two types of error might be introduced into the dataset if the removed record included
missing values?
a. Systematic error
b. Omission error
c. Random error
d. Typographical error - ANSWER-a, b
QUESTION: A healthcare study follows a particular sample over time to identify how the health
habits of teenagers impact their likelihood of acquiring various diseases later in their life in the
hope that the healthcare organization will be able to create early prevention programs. Which
type of research design does this study describe?
a. Double blind study
b. Systematic study
c. Cohort study
d. Experimental study - ANSWER-c
, Page 2 of 74
QUESTION: A company is trying to increase its online sales revenue by improving its e-mail
advertising campaign for repeat customers as well as new customers. Which two variables
would be used in determining a campaign to maximize revenue gain?
a. Number of purchases per e-mail
b. E-mail content
c. Spending per purchase
d. Cost per e-mail - ANSWER-a, c
QUESTION: This statistical procedure compares outcomes of different drug testing results
a. Anova
b. Correlation
c. Control Charts - ANSWER-a
QUESTION: This statistical procedure is used to help understand effective marketing and to
spend advertising dollars efficiently
a. Anova
b. Correlation
c. Control Charts - ANSWER-b
, Page 3 of 74
QUESTION: This statistical procedure monitors production process
a. Anova
b. Correlation
c. Control Charts - ANSWER-c
Analytics is a broad term that refers to a variety of tools that inform managerial decisions.
Which term can be used to describe managerial decisions?
a. Prescriptive
b. Predictive
c. Pareto chart
d. Biased - ANSWER-a
QUESTION: What are two reasons for the increasing use of analytics in organizational decision
making?
a. Relatively lower cost of computer storage
b. Lower availability of statistical experts
c. Higher cost of obtaining data
, Page 4 of 74
d. Higher computer processing power - ANSWER-a, d
QUESTION: In what way does probability theory inform decision-making for managers?
a. By quantifying risk
b. By quantifying data
c. By quantifying quality
d. By quantifying costs - ANSWER-a
QUESTION: Which type of data are the Olympic medals of gold, silver, and bronze examples of?
a. Nominal data
b. Ordinal data
c. Interval data
d. Ratio data - ANSWER-b
QUESTION: What are two aspects of data quality management?
a. It calculates spurious data.
b. It reduces the amount of incomplete data.
c. It monitors data input rates.
d. It cleans data. - ANSWER-b, d
