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C207 WGU (Module 2) Exam Questions And
Answers 2025 Update.
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? - Answer✔Association and causation
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? - Answer✔Not a representative sample
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? - Answer✔Median
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? - Answer✔Multiplication
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? - Answer✔Bayes Theorem
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. 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? - Answer✔z-score
The mean of 100 bank customers' waiting times for teller service is 5.8 minutes with a standard
deviation of 1.5. What time range would represent a 95.4% probability customer waiting time?
- Answer✔2.8 to 8.8
The revenue of NBA teams ranges from $226 million for the New York Knicks to $92 million for
the Milwaukee Bucks. Which statistic would measure how far each NBA team's revenue is from
the NBA revenue mean? - Answer✔Variance
1
C207 WGU (Module 2) Exam Questions And
Answers 2025 Update.
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? - Answer✔Association and causation
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? - Answer✔Not a representative sample
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? - Answer✔Median
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? - Answer✔Multiplication
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? - Answer✔Bayes Theorem
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. 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? - Answer✔z-score
The mean of 100 bank customers' waiting times for teller service is 5.8 minutes with a standard
deviation of 1.5. What time range would represent a 95.4% probability customer waiting time?
- Answer✔2.8 to 8.8
The revenue of NBA teams ranges from $226 million for the New York Knicks to $92 million for
the Milwaukee Bucks. Which statistic would measure how far each NBA team's revenue is from
the NBA revenue mean? - Answer✔Variance
1
