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	What statement about the adjacency matrix representing a social network is not true?	It is sparse since it contains a lot of non-zero elements.	correct	It can include weights. 	incorrect	It is a symmetric matrix.	incorrect	It has the same number of rows and columns. 	incorrect	
MC	Which statement is CORRECT?	The graph theoretic center is the node with the highest minimum distance to all other nodes.	incorrect	The geodesic represents the longest path between two nodes.	incorrect	The closeness is always higher than the betweenness.	incorrect	The betweenness counts the number of the times that a node or edge occurs in the geodesics of the network.	correct	
MC	Which statement is CORRECT?	The graph theoretic center is the node with the highest minimum distance to all other nodes.	incorrect	The geodesic represents the longest path between two nodes.	incorrect	The betweenness counts the number of the times that a node or edge occurs in the geodesics of the network.	correct	The closeness is always higher than the betweenness.	incorrect	
MC	Which of the following measures cannot be used to make the splitting decision in a regression tree?	ANOVA/F-test	incorrect	Entropy	correct	Mean Squared Error (MSE)	incorrect	
MC	OLAP (On-Line Analytical Processing) can help in which of the following steps of the analytics process?	Data denormalizatio	incorrect	Data visualization	correct	Data transformation	incorrect	Data collection	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	The exchange of confidential information	incorrect	Continuity of the partnership	incorrect	
MC	What is the correct ranking of the following analytics applications in terms of maturity?	Marketing Analytics (most mature), Risk Analytics (medium mature), HR Analytics (least mature).	incorrect	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	Risk Analytics (most mature), Marketing Analytics (medium mature), HR Analytics (least mature).	correct	
MC	Which of the following strategies can be used to deal with missing values?	Keep	incorrect	Delete	incorrect	Replace/impute	incorrect	All of these strategies can be applied	correct	
MC	Featurization in the context of neural networks refers to...	adding more local features to the data set.	incorrect	making features (=inputs) out of the network characteristics.	correct	adding more nodes to the network.	incorrect	selecting the most predictive features.	incorrect