BADM /
211
/ /
FINAL
/ /
EXAM Questions With Correct Answers
/ // // // //
The //marketing //department //of //ACME //Corporation //needs //to //identify //potential //high-
value /
/customers /
/for //their //new //Kitchen //Robot. //These //robots //are //expensive, //so //we //are //looking //to //identify
//customers /
/that /
/can /
/afford /
/such //
a/
/machine. /
/It's /
/been /
/determined /
/that /
/households /
/with //
a/
/net /
/income /
/greater /
/than /
/$50,000 /
/USD /
/are /
/of /
/interest /
/in /
,/the /
/marketing /
/campaign, //so //you //will //choose //a(n) //___________ //algorithm //to //model //these //customers.
classification
regression
affinity //analysis
recommender //system //- //CORRECT //ANSWERS(S)✔✔classification
Reducing /
/the /
/number //of //predictors //to //the //smallest //set //that //will //still //provide //accurate //predictions //is //a
//concept //called //____________________.
regeneration
parsimony
shrinkage
Gillette's //razor //- //CORRECT //ANSWERS(S)✔✔parsimony
You /
/have /
/been //given //a //dataset //with //15 //predictors //and //a //binary //outcome //that //denotes //whether //a
//customer /
/has //left //the //company //(yes //or //no). //As //an //absolute //minimum, //you'll //need //_____________
//samples //to //achieve //an //minimally //accurate //prediction.
150
180
190
,200 //- //CORRECT //ANSWERS(S)✔✔180
You /
/have /
/been /
/given //
a/
/dataset /
/with /
/15 /
/predictors /
/and //
a/
/numeric /
/outcome /
/that /
/denotes /
/the /
/income /
/that //
a/
/household /
/has /
/obtained. /
/As /
/an /
/absolute /
/minimum, /
/you'll //need //_____________ //samples //to //achieve //an //minimally //accurate //prediction.
200
180
300
150 //- //CORRECT //ANSWERS(S)✔✔150
, The /
/process /
/of /
/identifying /
/outliers /
/is /
/best /
/performed /
/by /
/someone //with //domain //knowledge //as //opposed //to //someone //with //statistical //knowledge. //
True
False //- //CORRECT //ANSWERS(S)✔✔True
If /
/you /
/impute //a //missing //value //with //its //column //mean, //then //you //will //___________________.
maximize //the //variability //of //the //dataset
overweight //the //variability //of //the //dataset
understate //the //variability //of //the //dataset
normalize /
/the /
/variability /
/of //the //dataset //- //CORRECT //ANSWERS(S)✔✔understate //the //variability //of //the //dataset
Standardization //uses //the //following //formula:
Using //the //rule-of-
thumb /
211
/ /
FINAL
/ /
EXAM Questions With Correct Answers
/ // // // //
The //marketing //department //of //ACME //Corporation //needs //to //identify //potential //high-
value /
/customers /
/for //their //new //Kitchen //Robot. //These //robots //are //expensive, //so //we //are //looking //to //identify
//customers /
/that /
/can /
/afford /
/such //
a/
/machine. /
/It's /
/been /
/determined /
/that /
/households /
/with //
a/
/net /
/income /
/greater /
/than /
/$50,000 /
/USD /
/are /
/of /
/interest /
/in /
,/the /
/marketing /
/campaign, //so //you //will //choose //a(n) //___________ //algorithm //to //model //these //customers.
classification
regression
affinity //analysis
recommender //system //- //CORRECT //ANSWERS(S)✔✔classification
Reducing /
/the /
/number //of //predictors //to //the //smallest //set //that //will //still //provide //accurate //predictions //is //a
//concept //called //____________________.
regeneration
parsimony
shrinkage
Gillette's //razor //- //CORRECT //ANSWERS(S)✔✔parsimony
You /
/have /
/been //given //a //dataset //with //15 //predictors //and //a //binary //outcome //that //denotes //whether //a
//customer /
/has //left //the //company //(yes //or //no). //As //an //absolute //minimum, //you'll //need //_____________
//samples //to //achieve //an //minimally //accurate //prediction.
150
180
190
,200 //- //CORRECT //ANSWERS(S)✔✔180
You /
/have /
/been /
/given //
a/
/dataset /
/with /
/15 /
/predictors /
/and //
a/
/numeric /
/outcome /
/that /
/denotes /
/the /
/income /
/that //
a/
/household /
/has /
/obtained. /
/As /
/an /
/absolute /
/minimum, /
/you'll //need //_____________ //samples //to //achieve //an //minimally //accurate //prediction.
200
180
300
150 //- //CORRECT //ANSWERS(S)✔✔150
, The /
/process /
/of /
/identifying /
/outliers /
/is /
/best /
/performed /
/by /
/someone //with //domain //knowledge //as //opposed //to //someone //with //statistical //knowledge. //
True
False //- //CORRECT //ANSWERS(S)✔✔True
If /
/you /
/impute //a //missing //value //with //its //column //mean, //then //you //will //___________________.
maximize //the //variability //of //the //dataset
overweight //the //variability //of //the //dataset
understate //the //variability //of //the //dataset
normalize /
/the /
/variability /
/of //the //dataset //- //CORRECT //ANSWERS(S)✔✔understate //the //variability //of //the //dataset
Standardization //uses //the //following //formula:
Using //the //rule-of-
thumb /
