BUAL Exam 1 study guide 2025 with
Complete Solutions
TheQ________QisQaQgraphicQthatQisQusedQtoQvisuallyQcheckQwhetherQdataQcomeQfromQaQnormalQpo
pulation.Q-QCORRECTQANSWERQ-normalQprobabilityQplot
ItQisQappropriateQtoQuseQtheQuniformQdistributionQtoQdescribeQaQcontinuousQrandomQvariableQxQw
henQ-QCORRECTQANSWERQ-relativeQfrequenciesQofQallQpossibleQvaluesQofQxQareQaboutQtheQsame.
TheQnormalQapproximationQofQtheQbinomialQdistributionQisQappropriateQwhenQ-
QCORRECTQANSWERQ-npQ≥Q5QandQn(1Q−Qp)Q≥Q5.
TheQfillQweightQofQaQcertainQbrandQofQadultQcerealQisQnormallyQdistributedQwithQaQmeanQofQ910Qgr
amsQandQaQstandardQdeviationQofQ5Qgrams.QWeQcalculatedQtheQvalueQofQzQforQaQspecificQboxQofQthi
sQbrandQofQcereal,QandQtheQzQvalueQwasQnegative.QThisQnegativeQzQvalueQindicatesQthatQ-
QCORRECTQANSWERQ-theQfillQweightQisQlessQthanQ910Qgrams.
WhichQofQtheQfollowingQstatementsQisQnotQaQpropertyQofQtheQnormalQprobabilityQdistribution?Q-
QCORRECTQANSWERQ-
95.44QpercentQofQallQpossibleQobservedQvaluesQofQtheQrandomQvariableQxQareQwithinQplusQorQminu
sQthreeQstandardQdeviationsQofQtheQpopulationQmean.
IfQtheQrandomQvariableQxQisQnormallyQdistributed,Q______QpercentQofQallQpossibleQobservedQvalue
sQofQxQwillQbeQwithinQthreeQstandardQdeviationsQofQtheQmean.Q-QCORRECTQANSWERQ-99.73
TheQzQvalueQtellsQusQtheQnumberQofQ________QthatQaQvalueQofQxQisQfromQtheQmeanQ-
QCORRECTQANSWERQ-standardQdeviations
Complete Solutions
TheQ________QisQaQgraphicQthatQisQusedQtoQvisuallyQcheckQwhetherQdataQcomeQfromQaQnormalQpo
pulation.Q-QCORRECTQANSWERQ-normalQprobabilityQplot
ItQisQappropriateQtoQuseQtheQuniformQdistributionQtoQdescribeQaQcontinuousQrandomQvariableQxQw
henQ-QCORRECTQANSWERQ-relativeQfrequenciesQofQallQpossibleQvaluesQofQxQareQaboutQtheQsame.
TheQnormalQapproximationQofQtheQbinomialQdistributionQisQappropriateQwhenQ-
QCORRECTQANSWERQ-npQ≥Q5QandQn(1Q−Qp)Q≥Q5.
TheQfillQweightQofQaQcertainQbrandQofQadultQcerealQisQnormallyQdistributedQwithQaQmeanQofQ910Qgr
amsQandQaQstandardQdeviationQofQ5Qgrams.QWeQcalculatedQtheQvalueQofQzQforQaQspecificQboxQofQthi
sQbrandQofQcereal,QandQtheQzQvalueQwasQnegative.QThisQnegativeQzQvalueQindicatesQthatQ-
QCORRECTQANSWERQ-theQfillQweightQisQlessQthanQ910Qgrams.
WhichQofQtheQfollowingQstatementsQisQnotQaQpropertyQofQtheQnormalQprobabilityQdistribution?Q-
QCORRECTQANSWERQ-
95.44QpercentQofQallQpossibleQobservedQvaluesQofQtheQrandomQvariableQxQareQwithinQplusQorQminu
sQthreeQstandardQdeviationsQofQtheQpopulationQmean.
IfQtheQrandomQvariableQxQisQnormallyQdistributed,Q______QpercentQofQallQpossibleQobservedQvalue
sQofQxQwillQbeQwithinQthreeQstandardQdeviationsQofQtheQmean.Q-QCORRECTQANSWERQ-99.73
TheQzQvalueQtellsQusQtheQnumberQofQ________QthatQaQvalueQofQxQisQfromQtheQmeanQ-
QCORRECTQANSWERQ-standardQdeviations