EBTM 350 CH. 10,11,16 EXAM QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS GRADED A++
What is included in the data mining approach of data exploration and reduction?
identfying groups in which the elements of the groups are in some ways similar
What formula calculates the Euclidean distance between X and Y?
Square Root (X1-Y1)^2+(X2-Y2)^2+...+(XN-YN)^2
What is true of cluster analysis?
It does not provide a definitive answer from analyzing the data.
What is true of hierarchical clustering?
The data are not partitioned into a particular cluster in a single step.
Determine if the statement is true or false.
In the average linkage clustering, the distance between two clusters is defined as
the average of distances between all pairs of objects, where each pair is made up
of one object from each group.
TRUE
In what method is the distance between groups defined as the distance between
the closest pair of objects, where only pairs consisting of one object from each
group are considered?
single linkage clustering
,What is the distance between two clusters in a complete linkage clustering?
the distance between the most distant pair of objects, one from each group
What is the first stage of joining clusters in agglomerative hierarchical
clustering?
Joining two clusters that are closest to each other
What is true of divisive clustering methods that makes them different from
agglomerative clustering methods?
They separate n objects successively into finer groupings
What uses the sum of squares between the objects in the cluster when measuring
their distances?
Ward's hierarchical clustering
In a k-nearest neighbors algorithm, what is similarity of records based on?
The closeness of a record to numerical predictors in the other records
Spam filtering for emails can be seen as an example of what type of approach of
data mining?
classification
In classification, what would be considered as a categorical variable of interest
for a credit approval decision for a requester?
rejecting or accepting credit approval
What data-mining method provides probabilistic if-then statements?
association rule
, Determine if the statement is true or false.
Lagging and leading measures in cause-and-effect modeling are uncorrelated.
FALSE
In the cause-and-effect modeling, internal metrics, such as employee satisfaction,
productivity, and turnover are considered to be what kind of measures?
leading
What data mining approach involves the developing of analytic models to
describe the relationship between metrics that drive business performance like
profitability, customer satisfaction, or employee satisfaction?
cause-and-effect modeling
What would be considered a lagging measure in a restaurant using the cause-
and-modeling method of data mining?
a satisfied customer
The accompanying spreadsheet shows the production model for the Blue Sunset
Band recording a new album. Which of the following formulas is used to calculate
the total studio recording cost?
=B6+B7*B12
The accompanying spreadsheet shows the production model for the Blue Sunset
Band recording a new album. Which of the following formulas is used to calculate
the total in-house recording cost?
=B10*B12
WITH COMPLETE SOLUTIONS GRADED A++
What is included in the data mining approach of data exploration and reduction?
identfying groups in which the elements of the groups are in some ways similar
What formula calculates the Euclidean distance between X and Y?
Square Root (X1-Y1)^2+(X2-Y2)^2+...+(XN-YN)^2
What is true of cluster analysis?
It does not provide a definitive answer from analyzing the data.
What is true of hierarchical clustering?
The data are not partitioned into a particular cluster in a single step.
Determine if the statement is true or false.
In the average linkage clustering, the distance between two clusters is defined as
the average of distances between all pairs of objects, where each pair is made up
of one object from each group.
TRUE
In what method is the distance between groups defined as the distance between
the closest pair of objects, where only pairs consisting of one object from each
group are considered?
single linkage clustering
,What is the distance between two clusters in a complete linkage clustering?
the distance between the most distant pair of objects, one from each group
What is the first stage of joining clusters in agglomerative hierarchical
clustering?
Joining two clusters that are closest to each other
What is true of divisive clustering methods that makes them different from
agglomerative clustering methods?
They separate n objects successively into finer groupings
What uses the sum of squares between the objects in the cluster when measuring
their distances?
Ward's hierarchical clustering
In a k-nearest neighbors algorithm, what is similarity of records based on?
The closeness of a record to numerical predictors in the other records
Spam filtering for emails can be seen as an example of what type of approach of
data mining?
classification
In classification, what would be considered as a categorical variable of interest
for a credit approval decision for a requester?
rejecting or accepting credit approval
What data-mining method provides probabilistic if-then statements?
association rule
, Determine if the statement is true or false.
Lagging and leading measures in cause-and-effect modeling are uncorrelated.
FALSE
In the cause-and-effect modeling, internal metrics, such as employee satisfaction,
productivity, and turnover are considered to be what kind of measures?
leading
What data mining approach involves the developing of analytic models to
describe the relationship between metrics that drive business performance like
profitability, customer satisfaction, or employee satisfaction?
cause-and-effect modeling
What would be considered a lagging measure in a restaurant using the cause-
and-modeling method of data mining?
a satisfied customer
The accompanying spreadsheet shows the production model for the Blue Sunset
Band recording a new album. Which of the following formulas is used to calculate
the total studio recording cost?
=B6+B7*B12
The accompanying spreadsheet shows the production model for the Blue Sunset
Band recording a new album. Which of the following formulas is used to calculate
the total in-house recording cost?
=B10*B12
