(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