Qmb3302 Final Uf Exam Set Test Questions And Correct Answers
QMB3302 Final UF EXAM SET TEST QUESTIONS AND CORRECT ANSWERS The correct number of clusters in Hierarchical clustering can be determined precisely using approaches such as silhouette scores (True or False) - ANSWER : False In K Means clustering, the analyst does not need to determine the number of clusters (K), these are always derived analytically using the kmeans algorithm. (True or False) - ANSWER : False One big difference between the unsupervised approaches in this module, and the supervised approaches in prior modules: Unsupervised models do not have a target variable (Y). This make is difficult to know when they are "right" or correct. (True or False) - ANSWER : True According to the documentation, a silhouette scores of 1 ia - ANSWER : The best score According to the documentation, a silhouette score of -1 is - ANSWER : The worst score Select all that apply. Imagine you have a data set with columns/inputs for customers: Column 1 = Customer ID (a number) Column 2 = Sales (a dollar value) Column 3= Frequency (a number) Column 4 = Satisfaction (a number)
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