WGU C207 DATA DRIVEN DECISION MAKING
FINAL ACTUAL QUESTIONS WITH VERIFIED
SOLUTIONS
◉ Consistent and repeatable data
Answer: Reliable
◉ Resulting from accurate measurements
Answer: Valid data
◉ If a responder lies on their survey, this creates what type of bias?
Answer: Information
◉ Sorting your spreadsheet can expose these errors by moving them
to the very top or the very bottom of the column
Answer: Omission or Out-of-Range
◉ An error that will fix itself over time
Answer: Random
◉ An error that will not fix itself. You must do something
,Answer: Systematic
◉ Cleaning and organizing data
Answer: Data Management
◉ Are the following variable quantitative or qualitative? Personality
type, social class, or communication style
Answer: Qualitative
◉ A study used when you a conditions can't be controlled
Answer: Observational study
◉ Observes people going forward in time from the time of their
entry into the study.
Answer: Cohort Study
◉ What are the three elements of an experimental study?
Answer: Unit, Treatment, Response
◉ Accurately measures what it is intended to measure
Answer: Valid data
, ◉ ________ an experimental study prevents bias.
Answer: Blinding
◉ Neither the treatment allocator nor the participant knows in
which group the participant is contributing. (Who is getting the real
drug?)
Answer: Double blind study
◉ The participants are not told if they are in the treatment group or
control group
Answer: Blind study
◉ Describes characteristics of a dataset. Mean, median, mode,
variation, standard deviation, range....
Answer: Descriptive analytics
◉ Uses data from t he past to predict the future
Answer: Predictive
◉ Uses experimental design and optimization to predict a future
Answer: Prescriptive
FINAL ACTUAL QUESTIONS WITH VERIFIED
SOLUTIONS
◉ Consistent and repeatable data
Answer: Reliable
◉ Resulting from accurate measurements
Answer: Valid data
◉ If a responder lies on their survey, this creates what type of bias?
Answer: Information
◉ Sorting your spreadsheet can expose these errors by moving them
to the very top or the very bottom of the column
Answer: Omission or Out-of-Range
◉ An error that will fix itself over time
Answer: Random
◉ An error that will not fix itself. You must do something
,Answer: Systematic
◉ Cleaning and organizing data
Answer: Data Management
◉ Are the following variable quantitative or qualitative? Personality
type, social class, or communication style
Answer: Qualitative
◉ A study used when you a conditions can't be controlled
Answer: Observational study
◉ Observes people going forward in time from the time of their
entry into the study.
Answer: Cohort Study
◉ What are the three elements of an experimental study?
Answer: Unit, Treatment, Response
◉ Accurately measures what it is intended to measure
Answer: Valid data
, ◉ ________ an experimental study prevents bias.
Answer: Blinding
◉ Neither the treatment allocator nor the participant knows in
which group the participant is contributing. (Who is getting the real
drug?)
Answer: Double blind study
◉ The participants are not told if they are in the treatment group or
control group
Answer: Blind study
◉ Describes characteristics of a dataset. Mean, median, mode,
variation, standard deviation, range....
Answer: Descriptive analytics
◉ Uses data from t he past to predict the future
Answer: Predictive
◉ Uses experimental design and optimization to predict a future
Answer: Prescriptive
