BADM /
211
/ /
Test
/ /
#2 Exam Questions With Correct Answers
/ // // // // //
Data //mining //adds //__________ //to //data //visualization //and //exploratory //analyses. //- //CORRECT
//ANSWERS(S)✔✔machine //learning //models
Machine /
/learning /
/refers /
/to /
/algorithms /
/that //__________________. //- //CORRECT //ANSWERS(S)✔✔learn //directly //from //data
The /
/conditional /
/probability /
/that /
/event //
A/
/will /
/occur /
/given /
/that /
/event //
B/
/has /
/already /
/occurred //may //be //written //as //__________________. //- //CORRECT //ANSWERS(S)✔✔P(A //ꓲ //B)
,Which /
/of /
/the //following //is //NOT //an //example //of //classification? //- //CORRECT //ANSWERS(S)✔✔Prediction
//of //someone's //income
Which /
/of /
/the //following //is //an //example //of //prediction? //- //CORRECT //ANSWERS(S)✔✔Forecasting //sales
Oversampling /
/rare /
/events /
/is //
a/
/method /
/used //to //address //_____________ //situations. //- //CORRECT //ANSWERS(S)✔✔Class //imbalance
If //
a/
/categorical /
/variable /
/is //ordinal, //it //may //be //coded //as //____________. //- //CORRECT //ANSWERS(S)✔✔integer //values
Normalizing //data //is //usually //accomplished //through //one //of //two //ways: //
1) //compute //the //Z-score //of //the //variable, //
and //
2) //______________. //- //CORRECT //ANSWERS(S)✔✔Rescale //the //variable //to //a //uniform //range
The /
/three /
/most /
, /effective /
/basic /
/plots /
/are /
/_________________. //- //CORRECT //ANSWERS(S)✔✔bar //charts, //line //graphs, //scatter //plots
Dummy /
/coding /
/categorical /
/variables //can //greatly //___________ //of //the //dataset. //- //CORRECT //ANSWERS(S)✔✔inflate //the
//dimension
In //k-fold //cross-
validation, /
/the /
/model /
/will /
/be /
/fit /
/_________ /
/times //before //computing //an //average //error //measure. //- //CORRECT //ANSWERS(S)✔✔5
12) /
/Victoria /
/from /
/Operations //has //asked //you //to //build //a //machine //learning //model //to //predict //the //mean-
time-before-
failure /
/for /
/an /
/industrial /
/robot. /
/She /
/has /
/provided /
211
/ /
Test
/ /
#2 Exam Questions With Correct Answers
/ // // // // //
Data //mining //adds //__________ //to //data //visualization //and //exploratory //analyses. //- //CORRECT
//ANSWERS(S)✔✔machine //learning //models
Machine /
/learning /
/refers /
/to /
/algorithms /
/that //__________________. //- //CORRECT //ANSWERS(S)✔✔learn //directly //from //data
The /
/conditional /
/probability /
/that /
/event //
A/
/will /
/occur /
/given /
/that /
/event //
B/
/has /
/already /
/occurred //may //be //written //as //__________________. //- //CORRECT //ANSWERS(S)✔✔P(A //ꓲ //B)
,Which /
/of /
/the //following //is //NOT //an //example //of //classification? //- //CORRECT //ANSWERS(S)✔✔Prediction
//of //someone's //income
Which /
/of /
/the //following //is //an //example //of //prediction? //- //CORRECT //ANSWERS(S)✔✔Forecasting //sales
Oversampling /
/rare /
/events /
/is //
a/
/method /
/used //to //address //_____________ //situations. //- //CORRECT //ANSWERS(S)✔✔Class //imbalance
If //
a/
/categorical /
/variable /
/is //ordinal, //it //may //be //coded //as //____________. //- //CORRECT //ANSWERS(S)✔✔integer //values
Normalizing //data //is //usually //accomplished //through //one //of //two //ways: //
1) //compute //the //Z-score //of //the //variable, //
and //
2) //______________. //- //CORRECT //ANSWERS(S)✔✔Rescale //the //variable //to //a //uniform //range
The /
/three /
/most /
, /effective /
/basic /
/plots /
/are /
/_________________. //- //CORRECT //ANSWERS(S)✔✔bar //charts, //line //graphs, //scatter //plots
Dummy /
/coding /
/categorical /
/variables //can //greatly //___________ //of //the //dataset. //- //CORRECT //ANSWERS(S)✔✔inflate //the
//dimension
In //k-fold //cross-
validation, /
/the /
/model /
/will /
/be /
/fit /
/_________ /
/times //before //computing //an //average //error //measure. //- //CORRECT //ANSWERS(S)✔✔5
12) /
/Victoria /
/from /
/Operations //has //asked //you //to //build //a //machine //learning //model //to //predict //the //mean-
time-before-
failure /
/for /
/an /
/industrial /
/robot. /
/She /
/has /
/provided /
