MC	Outlying observations which represent erroneous data are treated using...	missing value procedures.	correct	truncation or capping.	incorrect	
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	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	Consider a data set with a multiclass target variable as follows: 25% bad payers, 25% poor payers, 25% medium payers and 25% good payers. In this case, the entropy will be:	Maximal	correct	Minimal	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	Consider a data set with a multiclass target variable as follows: 25% bad payers, 25% poor payers, 25% medium payers and 25% good payers. In this case, the entropy will be:	Minimal	incorrect	Maximal	correct	
MC	Which of the following is not a risk when outsourcing analytics?	Dilution of competitive advantage due to e.g. mergers and acquisitions.	incorrect	The fact that all analytical activities need to be outsourced	correct	Continuity of the partnership	incorrect	The exchange of confidential information	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	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	Which of the following measures cannot be used to make the splitting decision in a regression tree?	Entropy	correct	ANOVA/F-test	incorrect	Mean Squared Error (MSE)	incorrect