chap04-TIF-BSAFC5

BasicProbability101CHAPTER4:BASICPROBABILITY1.Iftwoeventsarecollectivelyexhaustive,whatistheprobabilitythatoneortheotheroccurs?a)0.b)0.50.c)1.00.d)Cannotbedeterminedfromtheinformationgiven.ANSWER:cTYPE:MCDIFFICULTY:EasyKEYWORDS:collectivelyexhaustive2.Iftwoeventsarecollectivelyexhaustive,whatistheprobabilitythatbothoccuratthesametime?a)0.b)0.50.c)1.00.d)Cannotbedeterminedfromtheinformationgiven.ANSWER:dTYPE:MCDIFFICULTY:ModerateKEYWORDS:collectivelyexhaustive,mutuallyexclusiveEXPLANATION:Wedonotknowiftheyaremutuallyexclusive.3.Iftwoeventsaremutuallyexclusive,whatistheprobabilitythatoneortheotheroccurs?a)0.b)0.50.c)1.00.d)Cannotbedeterminedfromtheinformationgiven.ANSWER:dTYPE:MCDIFFICULTY:moderateKEYWORDS:collectivelyexhaustive,mutuallyexclusiveEXPLANATION:Wedonotknowiftheyarecollectivelyexhaustive.4.Iftwoeventsaremutuallyexclusive,whatistheprobabilitythatbothoccuratthesametime?a)0.b)0.50.c)1.00.d)Cannotbedeterminedfromtheinformationgiven.ANSWER:aTYPE:MCDIFFICULTY:EasyKEYWORDS:mutuallyexclusiveCopyright©2010PearsonEducation,Inc.PublishingasPrenticeHall102BasicProbability5.Iftwoeventsaremutuallyexclusiveandcollectivelyexhaustive,whatistheprobabilitythatbothoccur?a)0.b)0.50.c)1.00.d)Cannotbedeterminedfromtheinformationgiven.ANSWER:aTYPE:MCDIFFICULTY:EasyKEYWORDS:collectiveexhaustive,mutuallyexclusive6.Iftwoeventsaremutuallyexclusiveandcollectivelyexhaustive,whatistheprobabilitythatoneortheotheroccurs?a)0.b)0.50.c)1.00.d)Cannotbedeterminedfromtheinformationgiven.ANSWER:cTYPE:MCDIFFICULTY:EasyKEYWORDS:collectivelyexhaustive,mutuallyexclusive7.IfeventsAandBaremutuallyexclusiveandcollectivelyexhaustive,whatistheprobabilitythateventAoccurs?a)0.b)0.50.c)1.00.d)Cannotbedeterminedfromtheinformationgiven.ANSWER:dTYPE:MCDIFFICULTY:moderateKEYWORDS:collectivelyexhaustive,mutuallyexclusiveEXPLANATION:Wedonotknowiftheyareequallylikelyevents.8.IftwoequallylikelyeventsAandBaremutuallyexclusiveandcollectivelyexhaustive,whatistheprobabilitythateventAoccurs?a)0.b)0.50.c)1.00.d)Cannotbedeterminedfromtheinformationgiven.ANSWER:bTYPE:MCDIFFICULTY:easyKEYWORDS:collectivelyexhaustive,mutuallyexclusiveCopyright©2010PearsonEducation,Inc.PublishingasPrenticeHallBasicProbability1039.IftwoequallylikelyeventsAandBaremutuallyexclusive,whatistheprobabilitythateventAoccurs?a)0.b)0.50.c)1.00.d)Cannotbedeterminedfromtheinformationgiven.ANSWER:dTYPE:MCDIFFICULTY:moderateKEYWORDS:collectivelyexhaustive,mutuallyexclusiveEXPLANATION:Wedonotknowiftheyarecollectivelyexhaustive.10.IftwoequallylikelyeventsAandBarecollectivelyexhaustive,whatistheprobabilitythateventAoccurs?a)0.b)0.50.c)1.00.d)Cannotbedeterminedfromtheinformationgiven.ANSWER:dTYPE:MCDIFFICULTY:moderateKEYWORDS:collectivelyexhaustive,mutuallyexclusiveEXPLANATION:Wedonotknowiftheyaremutuallyexclusive.11.Selectionofraffleticketsfromalargebowlisanexampleofa)samplingwithreplacement.b)samplingwithoutreplacement.c)subjectiveprobability.d)Noneoftheabove.ANSWER:bTYPE:MCDIFFICULTY:EasyKEYWORDS:samplingwithreplacement,samplingwithoutreplacement12.Iftwoeventsareindependent,whatistheprobabilitythattheybothoccur?a)0.b)0.50.c)1.00.d)Cannotbedeterminedfromtheinformationgiven.ANSWER:dTYPE:MCDIFFICULTY:ModerateKEYWORDS:statisticalindependenceCopyright©2010PearsonEducation,Inc.PublishingasPrenticeHall104BasicProbability13.IftheoutcomeofeventAisnotaffectedbyeventB,theneventsAandBaresaidtobea)mutuallyexclusive.b)statisticallyindependent.c)collectivelyexhaustive.d)Noneoftheabove.ANSWER:bTYPE:MCDIFFICULTY:EasyKEYWORDS:statisticalindependence14.IfeventAandeventBcannotoccuratthesametime,theneventsAandBaresaidtobea)mutuallyexclusive.b)statisticallyindependent.c)collectivelyexhaustive.d)Noneoftheabove.ANSWER:aTYPE:MCDIFFICULTY:EasyKEYWORDS:mutuallyexclusive15.IfeithereventAoreventBmustoccur,theneventsAandBaresaidtobea)mutuallyexclusive.b)statisticallyindependent.c)collectivelyexhaustive.d)Noneoftheabove.ANSWER:cTYPE:MCDIFFICULTY:ModerateKEYWORDS:collectivelyexhaustive16.Thecollectionofallpossibleeventsiscalleda)asimpleprobability.b)asamplespace.c)ajointprobability.d)thenullset.ANSWER:bTYPE:MCDIFFICULTY:ModerateKEYWORDS:samplespaceCopyright©2010PearsonEducation,Inc.PublishingasPrenticeHallBasicProbability10517.Alltheeventsinthesamplespacethatarenotpartofthespecifiedeventarecalleda)simpleevents.b)jointevents.c)thesamplespace.d)thecomplementoftheevent.ANSWER:dTYPE:MCDIFFICULTY:ModerateKEYWORDS:samplespace,complement18.Simpleprobabilityisalsocalleda)marginalprobability.b)jointprobability.c)conditionalprobability.d)Bayes'theorem.ANSWER:aTYPE:MCDIFFICULTY:EasyKEYWORDS:marginalprobability19.Whenusingthegeneralmultiplicationrule,P(AandB)isequaltoa)P(A|B)P(B).b)P(A)P(B).c)P(B)/P(A).d)P(A)/P(B).ANSWER:aTYPE:MCDIFFICULTY:ModerateKEYWORDS:multiplicationrule20.Abusinessventurecanresultinthefollowingoutcomes(withtheircorrespondingchanceofoccurringinparentheses):HighlySuccessful(10%),Successful(25%),BreakEven(25%),Disappointing(20%),andHighlyDisappointing(?).Ifthesearetheonlyoutcomespossibleforthebusinessventure,whatisthechance