1|Page
WGU C207 OBJECTIVE ASSESSMENT 2 NEWEST 2026
ACTUAL EXAM| C207 DATA DRIVEN DECISION
MAKING OA FINAL WITH 300 REAL EXAM
QUESTIONS AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A+ (MOST RECENT!!)
A local school board is studying the impact of a proposed change in
testing on math scores. Bias can be introduced into the study by both
students and teachers. Which research technique would eliminate this
type of bias?
A) Observation study
B) Blind study
C) Cohort study
D) Double blind study -Correct Answer- D
A Company's product development team test 3 new car waxes by
waxing 5 cars with each wax and then running them through a car wash.
They then record number of washes it takes before the wax begins to
deteriorate. What is the term for the five cars?
A) The response
B) The construct validity
C) The experimental unit
D) The treatment -Correct Answer- C
pg. 1
,2|Page
An online retailer selling workout apparel has a large increase in sales
during December and declares that their weekly newspaper ad resulted
in higher sales. What misuse of statistics may the retailer have used in
making this decision?
A) Conscious Bias
B) Missing Data
C) Association and Causation
D) Small Sample Size -Correct Answer- C
An educator collects eighth grade math scores from a local school and
used this data to recommend curriculum changes for grades 8 - 12. What
misuse of statistics may the educator have used in making this
recommendation?
A) Not a representative sample
B) Conscious Bias
C) Lack of Binding
D) Missing Data -Correct Answer- A
An economist wishes to study the distribution of household income in a
Midwestern city. He randomly selects a sample from 12 households. He
notices two large incomes in his sample. Which measure best represents
the middle of the incomes?
A) Mode
B) Median
pg. 2
,3|Page
C) Variance
D) Mean -Correct Answer- B
A cable company offers its customers both cable television and internet.
What statistical rule should be used to determine the probability that
customers will have both cable television and internet?
A) Multiplication
B) Bayes Theorem
C) Combination
D) Addition -Correct Answer- A
A department store is considering a new credit policy to reduce defaults
on payments. Its records show that 95% of defaults have at least 2 late
payments. Also, 3% of all customers default and 30% of those customers
who have not defaulted have a least 2 late payments. What statistical
rule should be used to find the probability that a customer will default
given that at least 2 payments were late?
A) Central Limit Theorem
B) Multiplication Rule
C) Bayes Theorem
D) Combination Rule -Correct Answer- C
Based on quality checks at plastic bags manufacturer, the breaking
strength of their bags has a mean of 50.5 and a standard deviation of 1.6.
pg. 3
, 4|Page
A customer's test of the bags finds bag strength of 54.2 or less. Which
statistical measure should be used to help determine the probability of
the customer's test occurring?
A) t-test
B) z-score
C) p-value
D) R-Square -Correct Answer- B
What percent of the data of a normal distribution is within two standard
deviations of the mean?
A) 68.3
B) 75
C) 95.4
D) 99.7 - Correct Answer -c) 95.4
Judy is a big supporter of her local police force. A surveyor from the city
government calls to conduct a poll about her satisfaction with the police
in her community. Judy gives overwhelmingly positive answers to the
questions, even if she thinks there are some areas for improvement.
What kind of bias is Judy introducing?
A) response bias
B) conscious bias
C) gender bias
D) retrospective adjustment - Correct Answer -a) response bias
pg. 4
WGU C207 OBJECTIVE ASSESSMENT 2 NEWEST 2026
ACTUAL EXAM| C207 DATA DRIVEN DECISION
MAKING OA FINAL WITH 300 REAL EXAM
QUESTIONS AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A+ (MOST RECENT!!)
A local school board is studying the impact of a proposed change in
testing on math scores. Bias can be introduced into the study by both
students and teachers. Which research technique would eliminate this
type of bias?
A) Observation study
B) Blind study
C) Cohort study
D) Double blind study -Correct Answer- D
A Company's product development team test 3 new car waxes by
waxing 5 cars with each wax and then running them through a car wash.
They then record number of washes it takes before the wax begins to
deteriorate. What is the term for the five cars?
A) The response
B) The construct validity
C) The experimental unit
D) The treatment -Correct Answer- C
pg. 1
,2|Page
An online retailer selling workout apparel has a large increase in sales
during December and declares that their weekly newspaper ad resulted
in higher sales. What misuse of statistics may the retailer have used in
making this decision?
A) Conscious Bias
B) Missing Data
C) Association and Causation
D) Small Sample Size -Correct Answer- C
An educator collects eighth grade math scores from a local school and
used this data to recommend curriculum changes for grades 8 - 12. What
misuse of statistics may the educator have used in making this
recommendation?
A) Not a representative sample
B) Conscious Bias
C) Lack of Binding
D) Missing Data -Correct Answer- A
An economist wishes to study the distribution of household income in a
Midwestern city. He randomly selects a sample from 12 households. He
notices two large incomes in his sample. Which measure best represents
the middle of the incomes?
A) Mode
B) Median
pg. 2
,3|Page
C) Variance
D) Mean -Correct Answer- B
A cable company offers its customers both cable television and internet.
What statistical rule should be used to determine the probability that
customers will have both cable television and internet?
A) Multiplication
B) Bayes Theorem
C) Combination
D) Addition -Correct Answer- A
A department store is considering a new credit policy to reduce defaults
on payments. Its records show that 95% of defaults have at least 2 late
payments. Also, 3% of all customers default and 30% of those customers
who have not defaulted have a least 2 late payments. What statistical
rule should be used to find the probability that a customer will default
given that at least 2 payments were late?
A) Central Limit Theorem
B) Multiplication Rule
C) Bayes Theorem
D) Combination Rule -Correct Answer- C
Based on quality checks at plastic bags manufacturer, the breaking
strength of their bags has a mean of 50.5 and a standard deviation of 1.6.
pg. 3
, 4|Page
A customer's test of the bags finds bag strength of 54.2 or less. Which
statistical measure should be used to help determine the probability of
the customer's test occurring?
A) t-test
B) z-score
C) p-value
D) R-Square -Correct Answer- B
What percent of the data of a normal distribution is within two standard
deviations of the mean?
A) 68.3
B) 75
C) 95.4
D) 99.7 - Correct Answer -c) 95.4
Judy is a big supporter of her local police force. A surveyor from the city
government calls to conduct a poll about her satisfaction with the police
in her community. Judy gives overwhelmingly positive answers to the
questions, even if she thinks there are some areas for improvement.
What kind of bias is Judy introducing?
A) response bias
B) conscious bias
C) gender bias
D) retrospective adjustment - Correct Answer -a) response bias
pg. 4
