MC	The GIGO-principle mainly relates to which aspect of the analytics process?	Data selection	incorrect	Data transformation	incorrect	Data cleaning	incorrect	The GIGO-principle applies to all of these listed aspects	correct	
MC	Given the following decision tree:<br><br><img class="img-fluid" src="http://www.pdbmbook.com/static/quiz/fig20_6.png"><br><br>According to the decision tree, an applicant with Income > $50.000 and High Debt=Yes is classified as:	Bad Risk	correct	Good Risk	incorrect	
MC	The GIGO-principle mainly relates to which aspect of the analytics process?	Data selection	incorrect	Data transformation	incorrect	Data cleaning	incorrect	The GIGO-principle applies to all of these listed aspects	correct	
MC	The aim of clustering is to come up with clusters such that the...	homogeneity within a cluster is minimized and the heterogeneity between clusters is maximized.	incorrect	homogeneity within a cluster is maximized and the heterogeneity between clusters is maximized.	correct	homogeneity within a cluster is minimized and the heterogeneity between clusters is minimized.	incorrect	homogeneity within a cluster is maximized and the heterogeneity between clusters is minimized.	incorrect	
MC	Which statement is CORRECT?	An important advantage of cloud based solutions concerns the scalability and economies of scale offered. More capacity (e.g. servers) can be added on the fly whenever needed. 	correct	On premise solutions catalyze improved collaboration across business departments and geographical locations.	incorrect	When using on premise solutions, maintenance or upgrade projects may even go by unnoticed.	incorrect	The big footprint access to data management and analytics capabilities is a serious drawback of cloud based solutions.	incorrect	
MC	Which of the following activities are part of the post-processing step?	Model interpretation and validation	incorrect	Sensitivity analysis	incorrect	Model representation	incorrect	All of these activities	correct	
MC	Which of the following is not an advantage of open source software for analytics?	It has been thoroughly engineered and extensively tested, validated and completely documented.	correct	It is available for free.	incorrect	It can be used in combination with commercial software. 	incorrect	A world-wide network of developers can work on it.	incorrect	
MC	What is the correct ranking of the following analytics applications in terms of maturity?	Risk Analytics (most mature), Marketing Analytics (medium mature), HR Analytics (least mature).	correct	Risk Analytics (most mature), HR Analytics (medium mature), Marketing Analytics (least mature).	incorrect	HR Analytics (most mature), Marketing Analytics (medium mature), Risk Analytics (least mature).	incorrect	Marketing Analytics (most mature), Risk Analytics (medium mature), HR Analytics (least mature).	incorrect	
MC	Which of the following is not a risk when outsourcing analytics?	The fact that all analytical activities need to be outsourced	correct	Dilution of competitive advantage due to e.g. mergers and acquisitions.	incorrect	Continuity of the partnership	incorrect	The exchange of confidential information	incorrect	
MC	Which of the following costs should be included in a Total Cost of Ownership (TCO) analysis?	Acquisition costs	incorrect	Ownership and operation costs	incorrect	Post ownership costs	incorrect	All of these costs	correct