Have a Question ?

Home / Answered Questions / WPC 300 / wpc300-33872-assignments-quizzes-quiz-4-q-802

(Solved): WPC300-33872 Assignments| quizzes| Quiz 4...


WPC300 QUIZ 5 is now ready get it here


WPC300 QUIZ 4

 

Score for this attempt: 20 out of 20

 

 

Question 1

Which of the following is true of hierarchical clustering?

  •   All clusters must have more than one object in it
  •   All clusters must have the same number of data
  •   The data partition does not occur in a single step
  •   No single cluster can have all data

 

Question 2

In the target story discussed in the lecture, why did Target send the teen daughter maternity ads?

  •   Target was sending ads to all women in a particular neighborhood
  •   Target analytics model suggested she was pregnant based on her buying habit
  •   Target was using special promotion that targeted all teens in her geographical area
  •   Target analytic model confused her with an older woman with a similar name

 

Question 3

In loading phase of an ETL tool, the transformed data gets loaded into an end target usually the ____________.

  •   Online analytical processing
  •    Data warehouse
  •    Master data management
  •    Data Mart

 

Question 4

Which of the following category of data mining you would use for Spam filtering of emails?

  •   Both supervised and unsupervised
  •    Supervised
  •    Heuristics
  •    Unsupervised

 

Question 5

Which of the following is a false statement?

  •   The k-means algorithm is a method for doing partitional clustering
  •    In the cluster analysis, the objects within clusters should exhibit an high amount of similarity
  •    To predict sales from transactional data one should perform clustering analysis.
  •    Reducing SSE (sum of squared error) within cluster increases cohesion

 

Question 6

Which of the following is not a standard practice in "Data Transformation" process of an ETL tool?

  •   Data extraction from ERP
  •   Splitting data fields
  •   Data aggregation
  •   Change of data format

 

Question 7

Which of the following is not an application of clustering analysis?

  •   Market segmentation analysis
  •    Web click stream analysis
  •    Crime prediction analysis
  •    Collaborating filtering analysis

 

Question 8

In data extraction process for an ETL tool, which of the following is not an example of legit data source?

  •   Online Line Transaction data
  •   Point of Sales data
  •   Competitions' data
  •   Customers' social media data

 

Question 9

Which of the following the first stage of agglomerative hierarchical clustering?

  •   By joining two clusters that not at a Euclidean distance
  •   By joining two clusters that are closest to each other
  •   By joining two clusters farthest away from each other
  •   By separating cluster into two finer groups

 

Question 10

Which of the following is a definition of distance between two clusters in a complete linkage clustering?

  •   The distance between the most distant pair of objects, one from each group
  •   The sum of square of the distance between clusters
  •   The distance between the least distant pair of objects, one from each group
  •   The average of distance between all pairs of objects, where each pair is made up of one object from each group

WPC300 QUIZ 5 is now ready get it here 



We have an Answer from Expert View Expert Answer

Expert Answer


Question 1

2 / 2 pts

 

Question 2

2 / 2 pts

In the target story discussed in the lecture, why did Target send the teen daughter maternity ads?

Question 3

We have an Answer from Expert
Buy This Answer $15

-- OR --

Subscribe To View Unlimited Answers
Subscribe $12 / Month