WGU C207 OA 2026 NEWEST EXAM QUESTIONS
WITH DETAILED VERIFIED ANSWERS GRADED
A+ ASSURED SUCCESS
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 team's revenue is
from the NBA revenue mean?
a. Z-score
b. Mode
c. Median
d. Variance - Answer👀 d
A local plumbing company is analyzing to see how the number weeks taken for their
payment receipts is distributed. Which graphical analysis technique should they use?
a. Scatterplot
b. Pie Chart
c. Histogram
d. Box Plot - Answer👀 c
Given the following data set:60, 41, 30, 15, 34, 30 What is the Median?
a. 32
b. 30
c. 34
d. 35 - Answer👀 a
,A loan officer compares the interest rates for 48 month fixed-rate loans and 48 month
variable-rate auto loans. Two independent, random samples of auto loans are selected.
Which two results happen when the null hypothesis is rejected using a t-test? (Pick 2)
a. The test statistic is less than the critical value
b. The null hypothesis is rejected given a probability of being wrong
c. The test statistic is greater than the critical value
d. The null hypothesis is accepted given a probability of being correct. - Answer👀 b, c
An online marketing organization designed a social media that wants to earn at least
$250,000 in revenue. The campaign will reach 10,000 viewers and receive orders with a
mean of $50 and standard deviation $10. Which measure should be used to determine the
probability of the campaign receiving at least $250,000?
a. T-statistic
b. Z-score
c. Median
d. R-squared - Answer👀 b
What does it mean when an individual data point has a z-score of +1?
a. The data point is one standard deviation less than the mean of the data set.
b. The sample standard deviation of the data set is negative.
c. The data point is less than the mean of the data set.
d. The data point is one standard deviation greater than the mean of the data set. -
Answer👀 a
A descriptive graph depicting whether there is a correlation or relationship between two
variables, such as car mileage and resale price would be:
,a. Histogram
b. Bar chart
c. Scatterplot
d. Pareto chart - Answer👀 c
A food chain finds that there is a strong positive correlation between average daily sales for
their pizza store and the number of daily visits to their website. What should be considered
before the pizza chain can conclude that the daily sales are driving the number of visits to
their website (or vice versa)?
a. How many days are considered?
b. Is there a causal relationship between sales and site visits?
c. Can we compare sales in dollars to number of visits?
d. Is the central limit theorem applicable? - Answer👀 b
We examine a population with normal distribution having mean of 1000 and standard
deviation 50. What percentage of the population lies between 850 and 1150?
a. 68%
b. 95%
c. 99.7%
d. 100% - Answer👀 c
We examine a population with normal distribution having mean 1000 and standard deviation
50. What percentage of the population lies between 900 and 1100?
a. 68%
b. 95%
c. 99.7%
d. 100% - Answer👀 c
, How are z-scores from a population with normal distribution distributed?
a. Normal Distribution with mean 0 standard deviation 1
b. Normal Distribution with the same mean and standard deviation
c. Can't be determined - Answer👀 a
What z-score should be used to find the 99% confidence interval?
a. 1.645
b. 1.96
c. 0.99
d. 2.575 - Answer👀 d
A stock broker offers two portfolios for his clients. There are various risks with each portfolio
and his is trying to minimize the risk of loss. Both portfolios have the same mean
return.Which measure should the employee use to decide between these alternatives?
a. Z-score
b. Median
c. T-statistic
d. Variance - Answer👀 d
A comparison between the effectiveness of online vs. newspaper coupons was conducted
over a 3 month period to see which method brought in greater average revenue per
customer.Which statistic should the pizza manager recommend use to determine
promotional method to use?
a. Chi Square
b. Z score
c. ANOVA
WITH DETAILED VERIFIED ANSWERS GRADED
A+ ASSURED SUCCESS
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 team's revenue is
from the NBA revenue mean?
a. Z-score
b. Mode
c. Median
d. Variance - Answer👀 d
A local plumbing company is analyzing to see how the number weeks taken for their
payment receipts is distributed. Which graphical analysis technique should they use?
a. Scatterplot
b. Pie Chart
c. Histogram
d. Box Plot - Answer👀 c
Given the following data set:60, 41, 30, 15, 34, 30 What is the Median?
a. 32
b. 30
c. 34
d. 35 - Answer👀 a
,A loan officer compares the interest rates for 48 month fixed-rate loans and 48 month
variable-rate auto loans. Two independent, random samples of auto loans are selected.
Which two results happen when the null hypothesis is rejected using a t-test? (Pick 2)
a. The test statistic is less than the critical value
b. The null hypothesis is rejected given a probability of being wrong
c. The test statistic is greater than the critical value
d. The null hypothesis is accepted given a probability of being correct. - Answer👀 b, c
An online marketing organization designed a social media that wants to earn at least
$250,000 in revenue. The campaign will reach 10,000 viewers and receive orders with a
mean of $50 and standard deviation $10. Which measure should be used to determine the
probability of the campaign receiving at least $250,000?
a. T-statistic
b. Z-score
c. Median
d. R-squared - Answer👀 b
What does it mean when an individual data point has a z-score of +1?
a. The data point is one standard deviation less than the mean of the data set.
b. The sample standard deviation of the data set is negative.
c. The data point is less than the mean of the data set.
d. The data point is one standard deviation greater than the mean of the data set. -
Answer👀 a
A descriptive graph depicting whether there is a correlation or relationship between two
variables, such as car mileage and resale price would be:
,a. Histogram
b. Bar chart
c. Scatterplot
d. Pareto chart - Answer👀 c
A food chain finds that there is a strong positive correlation between average daily sales for
their pizza store and the number of daily visits to their website. What should be considered
before the pizza chain can conclude that the daily sales are driving the number of visits to
their website (or vice versa)?
a. How many days are considered?
b. Is there a causal relationship between sales and site visits?
c. Can we compare sales in dollars to number of visits?
d. Is the central limit theorem applicable? - Answer👀 b
We examine a population with normal distribution having mean of 1000 and standard
deviation 50. What percentage of the population lies between 850 and 1150?
a. 68%
b. 95%
c. 99.7%
d. 100% - Answer👀 c
We examine a population with normal distribution having mean 1000 and standard deviation
50. What percentage of the population lies between 900 and 1100?
a. 68%
b. 95%
c. 99.7%
d. 100% - Answer👀 c
, How are z-scores from a population with normal distribution distributed?
a. Normal Distribution with mean 0 standard deviation 1
b. Normal Distribution with the same mean and standard deviation
c. Can't be determined - Answer👀 a
What z-score should be used to find the 99% confidence interval?
a. 1.645
b. 1.96
c. 0.99
d. 2.575 - Answer👀 d
A stock broker offers two portfolios for his clients. There are various risks with each portfolio
and his is trying to minimize the risk of loss. Both portfolios have the same mean
return.Which measure should the employee use to decide between these alternatives?
a. Z-score
b. Median
c. T-statistic
d. Variance - Answer👀 d
A comparison between the effectiveness of online vs. newspaper coupons was conducted
over a 3 month period to see which method brought in greater average revenue per
customer.Which statistic should the pizza manager recommend use to determine
promotional method to use?
a. Chi Square
b. Z score
c. ANOVA
