WGU C207 Data Driven Decision Making
PA (Latest Update ) Questions
with Correct Answers {Grade A} 100%
Verified
A medical care provider determines the probability that a patient needs treatment for a
broken bone, the probability that a patient needs treatment for a concussion, and the
probability that a patient needs treatment for both a broken bone and a concussion.
Which two techniques apply in finding the probability that a patient needs treatment for
a broken bone and a concussion?Choose 2 answers.
a) Intersection
b) Union
c) Multiplication principle
d) Mutually exclusive - correct answer a) Intersection
c) Multiplication principle
Given the following data set:9, 12, 14, 10, 8, 11, 12
What is the mode?
,a) 8
b) 9
c) 11
d) 12 - correct answer d) 12
Which graphical tool is used to illustrate a possible relationship or correlation between
two variables?
a) Run chart
b) Scatterplot
c) Box plot
d) Histogram - correct answer b) Scatterplot
What does it mean when an individual data point has a z-score of -2?
a) The data point is greater than the mean of the data set.
b) The sample standard deviation of the data set is negative.
,c) The data point is equal to the mean of the data set.
d) The data point is two standard deviations less than the mean of the data set. -
correct answer d) The data point is two standard deviations less than the mean of the
data set.
A research study examined the impact of product advertisement exposure on that
product's brand awareness. The appropriate statistical test indicates that the null
hypothesis should be rejected at the 5% significance level.What can be concluded from
this study?
a) The advertisement was effective in increasing sales.
b) The advertisement was effective in building brand awareness.
c) Five percent of the subjects did not like the advertisement.
d) Ninety-five percent of the subjects liked the brand. - correct answer b) The
advertisement was effective in building brand awareness.
A manager analyzes a data set that includes information on individual incomes. The
manager knows that the data set is fairly representative of the general population and
, includes several millionaires.Based on this data set, which measure of central
tendency best represents the middle of the distribution?
a) Mean
b) Median
c) Frequency
d) Mode - correct answer b) Median
After evaluating manufacturing times for a particular product, a manager determines
that the times are spread out across the distribution. The manager has been asked to
determine how far, on average, the time is from the mean.Which statistic roughly
measures the average distance of a data point from the mean of the distribution?
a) Mean
b) Standard deviation
c) Mode
d) Arithmetic mean - correct answer b) standard deviation
PA (Latest Update ) Questions
with Correct Answers {Grade A} 100%
Verified
A medical care provider determines the probability that a patient needs treatment for a
broken bone, the probability that a patient needs treatment for a concussion, and the
probability that a patient needs treatment for both a broken bone and a concussion.
Which two techniques apply in finding the probability that a patient needs treatment for
a broken bone and a concussion?Choose 2 answers.
a) Intersection
b) Union
c) Multiplication principle
d) Mutually exclusive - correct answer a) Intersection
c) Multiplication principle
Given the following data set:9, 12, 14, 10, 8, 11, 12
What is the mode?
,a) 8
b) 9
c) 11
d) 12 - correct answer d) 12
Which graphical tool is used to illustrate a possible relationship or correlation between
two variables?
a) Run chart
b) Scatterplot
c) Box plot
d) Histogram - correct answer b) Scatterplot
What does it mean when an individual data point has a z-score of -2?
a) The data point is greater than the mean of the data set.
b) The sample standard deviation of the data set is negative.
,c) The data point is equal to the mean of the data set.
d) The data point is two standard deviations less than the mean of the data set. -
correct answer d) The data point is two standard deviations less than the mean of the
data set.
A research study examined the impact of product advertisement exposure on that
product's brand awareness. The appropriate statistical test indicates that the null
hypothesis should be rejected at the 5% significance level.What can be concluded from
this study?
a) The advertisement was effective in increasing sales.
b) The advertisement was effective in building brand awareness.
c) Five percent of the subjects did not like the advertisement.
d) Ninety-five percent of the subjects liked the brand. - correct answer b) The
advertisement was effective in building brand awareness.
A manager analyzes a data set that includes information on individual incomes. The
manager knows that the data set is fairly representative of the general population and
, includes several millionaires.Based on this data set, which measure of central
tendency best represents the middle of the distribution?
a) Mean
b) Median
c) Frequency
d) Mode - correct answer b) Median
After evaluating manufacturing times for a particular product, a manager determines
that the times are spread out across the distribution. The manager has been asked to
determine how far, on average, the time is from the mean.Which statistic roughly
measures the average distance of a data point from the mean of the distribution?
a) Mean
b) Standard deviation
c) Mode
d) Arithmetic mean - correct answer b) standard deviation
