WGU C207 OA DATA DRIVEN DECISION
MAKING TEST BANK REVIEW SHEET
TESTED QUESTIONS GRADED A+
●● Predictive Analytics
Answer: the use of past data to model future outcomes
●● Prescriptive Analytics
Answer: use techniques that create models indicating the best decision to
make or course of action to take
●● 4 components of Big Data
Answer: Structured and Unstructured data, large quantities, cannot use
traditional software and databases
●● Data Mining
Answer: finding hidden patterns within Big Data
●● 3 Steps of Davenport-Kim Three-Stage Model
Answer: 1. framing the problem
2. solving the problem
3. communicating results
,●● Data Management
Answer: A process that focuses on data collection, storage, and retrieval.
Common data management functions include addition, deletion,
modification, and listing.
●● Continuous Data
Answer: Data that can be any value on a range
ex: age
●● Interval Data
Answer: Data that is within a range and an equal interval apart
ex: times, shoe sizes
●● Ratio Data
Answer: Data that have known intervals between values and a
meaningful zero value
ex: income, inventory levels
Ratioooo = 0
,●● Discrete Data
Answer: Numerical data that can be counted as whole numbers
ex: cars
●● Nominal Data
Answer: Data which consists of names, labels, or categories
ex: male/female
NOMinal = NAMes
●● Ordinal Data
Answer: Data that places objects into an order according to some quality
with higher order indicating more of that quality
ex: degrees
ORDinal = ORDered
●● Random Error
Answer: An error that will not repeat itself and occurs less in larger
samples of data
●● Systematic Error
, Answer: An error that is consistently made throughout an experiment,
likely because of measurement or tool faultiness
●● Omission Error
Answer: An error because something (for example, data or survey
response) is missing.
●● Outlier
Answer: A value much greater or much less than the others in a data set
●● Measurement Bias
Answer: Bias from a poor representation of the population or a sample
that is not random
●● Response Bias
Answer: Tendency for subjects to respond with what they assume the
questioner wants to hear
●● Conscious Bias
Answer: Tendency for the surveyor to be seeking or leading to a certain
response
●● Skewness (Bias)
MAKING TEST BANK REVIEW SHEET
TESTED QUESTIONS GRADED A+
●● Predictive Analytics
Answer: the use of past data to model future outcomes
●● Prescriptive Analytics
Answer: use techniques that create models indicating the best decision to
make or course of action to take
●● 4 components of Big Data
Answer: Structured and Unstructured data, large quantities, cannot use
traditional software and databases
●● Data Mining
Answer: finding hidden patterns within Big Data
●● 3 Steps of Davenport-Kim Three-Stage Model
Answer: 1. framing the problem
2. solving the problem
3. communicating results
,●● Data Management
Answer: A process that focuses on data collection, storage, and retrieval.
Common data management functions include addition, deletion,
modification, and listing.
●● Continuous Data
Answer: Data that can be any value on a range
ex: age
●● Interval Data
Answer: Data that is within a range and an equal interval apart
ex: times, shoe sizes
●● Ratio Data
Answer: Data that have known intervals between values and a
meaningful zero value
ex: income, inventory levels
Ratioooo = 0
,●● Discrete Data
Answer: Numerical data that can be counted as whole numbers
ex: cars
●● Nominal Data
Answer: Data which consists of names, labels, or categories
ex: male/female
NOMinal = NAMes
●● Ordinal Data
Answer: Data that places objects into an order according to some quality
with higher order indicating more of that quality
ex: degrees
ORDinal = ORDered
●● Random Error
Answer: An error that will not repeat itself and occurs less in larger
samples of data
●● Systematic Error
, Answer: An error that is consistently made throughout an experiment,
likely because of measurement or tool faultiness
●● Omission Error
Answer: An error because something (for example, data or survey
response) is missing.
●● Outlier
Answer: A value much greater or much less than the others in a data set
●● Measurement Bias
Answer: Bias from a poor representation of the population or a sample
that is not random
●● Response Bias
Answer: Tendency for subjects to respond with what they assume the
questioner wants to hear
●● Conscious Bias
Answer: Tendency for the surveyor to be seeking or leading to a certain
response
●● Skewness (Bias)
