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Bual 2650 Gupta

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2024/2025 Written for academic year
Institution Bual 2650 Gupta
Course Bual 2650 Gupta
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Exam of 2 pages for the course Bual 2650 Gupta at Bual 2650 Gupta (Bual 2650 Gupta)

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BUAL 2650 GUPTA QUESTIONS WITH CORRECT
ANSWERS 2025
predictiveuanalyticsu-uCORRECTuANSWERwhatuwilluhappen
descriptiveuanalyticsu-uCORRECTuANSWERWhatuhasuhappened?
correlationucoefficientu-
uCORRECTuANSWERmeasureuofulinearurelationshipubetweenu2uvariables,uxuanduy,uwhichu

doesn'tudependuonuunitsuofumeasurement
Rusquaredu-
uCORRECTuANSWERtheuproportionuofutheutotaluvariationuinuaudependentuvariableuexplain

edubyuanuindependentuvariable
lurkinguvariableu-uCORRECTuANSWERunknownuvariableuthatuhasntubeenuaccountedufor
equationsu-uCORRECTuANSWERactual-predicted
Multicollinearityu-uCORRECTuANSWERindependentuvariablesuareuhighlyucorrelated
p-valueu>ualphau-uCORRECTuANSWERfailutoureject
p-valueu<ualphau-uCORRECTuANSWERrejectuHo
nulluhypothesisu(HO)u-
uCORRECTuANSWERexistingutheoryuorubelief,ualwaysuassumedutoubeutrue

probabilityuofuconfidenceucoefficentu-uCORRECTuANSWER(noturejectinguHOu|uHOuisutrue)
criticaluvalueu-uCORRECTuANSWERhelpsudetermineuwhereutheuvalueufalls
TypeuIuerroru-uCORRECTuANSWERrejectinguautrueunulluhypothesis
assumptionsuofulogisticuregressionu-
uCORRECTuANSWERnormalityunoturequired,urandomization,uinterdepedence

predictionuforulogisticuregressionushouldubeu-
uCORRECTuANSWERcategoricaluoruqualitative

notuaucommonuvalueuofualphau-uCORRECTuANSWER.02
seasonalueffectu-
uCORRECTuANSWERoneuthaturepeatsuatufixeduintervalsuofutime,utypicallyuauyear,umonth,u

week,uoruday
SimpleuMovinguAverageu-
uCORRECTuANSWERausmoothingumethodubaseduonutheuideauofuaveragingurandomufluctu

ationsuinutheutimeuseriesutouidentifyutheuunderlyingudirectionuinuwhichutheutimeuseriesuisucha
nging
whichuofutheufollowinguisunotuanuerrorumetricsu-
uCORRECTuANSWERmeanuregressionudeviation

clusteruanalysisu-
uCORRECTuANSWERstatisticalutechniquesuidentifyugroupsuofuentitiesuthatuhaveusimilaruch

aracteristics
DiscriminantuAnalysisu-uCORRECTuANSWERclassifiesuobjectsuintoupredefineduclasses
opportunityulossustrategyu-uCORRECTuANSWERminimaxuregret
spamufilteringuemailsuisuwhatutypeuofudatauanalysisu-uCORRECTuANSWERclassification
agglomerativeuclusteringu-
uCORRECTuANSWERmethodsuproceedubyuseriesuofufusionsuofutheunuobjectsuintougroups.

whichuofutheufollowinguisunotutheustrengthuofuassociationu-uCORRECTuANSWERelevator
aggressiveu(optimistic)ustrategyu-
uCORRECTuANSWERminimizesutheusmallestupaymentu(minimin)

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