SAT数学练习14.docx
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SAT数学练习14.docx
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SAT数学练习14
1.SeveralEnglishprofessorscategorizedtheliteraryworksfromtheirseminarsbytimeperiodandlengthasshowninthetableattheleft.Accordingtothetable,whatpercentageofthosebookswith 500 ormorepagesarefromthe 19th
century?
A.17%
B.43%
C.50%
D.56%
2.Guilhermeasked 10th and 11th gradersathisschoolwhichsporttheypreferredbetweenbasketballandfootball.Thetableabovepartiallyshowstheresults.Giventhat 20% ofstudentsinGuilherme'sschoolwhopreferfootballarein 10th grade,howmany 11th gradersathisschoolpreferbasketball?
A.27
B.46
C.120
D.150
3.Asciencetextbookhasfourchapters,eachwithanumberofskillsproblemsandofanalysisproblems.Atablerepresentingthisinformationisontheleft.Basedonthetable,whichofthefollowingstatementsistrue?
A.Therelativefrequencyofanalysisproblemscomingfromchapter 4 is
.
B.Therelativefrequencyofanalysisproblemscomingfromchapter 2 is
.
C.Therelativefrequencyofproblemsinchapter 1 beingskillsproblemsis
.
D.Therelativefrequencyofproblemsinchapter 2 beingskillsproblemsis
.
4.Victordecidestotrythreedifferentroutestoworkforaperiodof 40 days.Inthetableabove,hetrackedwhetherhearrivedtoworklateorontimeeachtimethatheusedaparticularroute.Accordingtothetable,whatistheprobabilitythatVictorwaslatewhenheusedRouteA?
A.
B.
C.
D.
5.Abiologyprofessorisinvestigatingtrendsincurrentenrollmentofmale/femaleundergraduatestudentsincertainbiologicallyfocusedcross-departmentalprograms.Theabovetablerepresentstheprofessor'sfindings.Notethatstudentsarenotallowedtoenrollinmorethanoneoftheseprogramsatthisparticularschool.Abouthowmanyfemalestudentsshouldbeenrolledintheforensicsprogramtoprovideevidencethatenrollinginforensicsisindependentofstudentgender?
A.66
B.118
C.210
D.214
6.Thehousesinthe“historicdistrict”ofaparticulartownareeitherhistoricallyprotectedornot.Theabovetablepartiallyrepresentsthesehomesandwhethertheyhavefoundationsmadefrompouredconcrete,mortarandfieldstone,oracombinationofboth.Ifonly 4.5% ofthenon-historically-protectedhomeshaveafieldstone&mortarfoundation,howmanyhomesisthis?
Roundtothenearestwholenumber.
7.Geometrystudentsparticipatedinanactivitytoclassifytheshapesintheroombynumberofsidesandcolor.Thetableabovedisplaystheresults.Ifatriangleischosenatrandomfromthisactivity,whatistheprobabilitythatitisblue?
A.
B.
C.
D.
8.Asciencetextbookhasfourchapters,eachwithanumberofskillsproblemsandofanalysisproblems.Atablerepresentingthisinformationisontheleft.Basedonthetable,whichofthefollowingstatementsistrue?
A.Therelativefrequencyofanalysisproblemscomingfromchapter 4 is
.
B.Therelativefrequencyofanalysisproblemscomingfromchapter 2 is
.
C.Therelativefrequencyofproblemsinchapter 1 beingskillsproblemsis
.
D.Therelativefrequencyofproblemsinchapter 2 beingskillsproblemsis
.
9.StudentsinacollegegeographyclasscreatedatableinwhichthecountriesofNorthandCentralAmericaaredisplayedbybothpopulationandpopulationdensity(persquarekilometer).IftherelativefrequencyofthisoccurringcomparedwithallcountriesinNorthAmericais 0.174,howmanycountrieshaveapopulationdensityoffewerthan 100 per
andhaveamediumpopulation?
A.2
B.4
C.17
D.63
10.Agroupofrestaurantownerssurveyedalistofpeopletodeterminehowpreferencesofmeatscomparedtopreferencesofgrains,andiftheyarerelated.Theresultsareinthetableabove.Basedonthetable,isthereevidenceofassociationbetweenchickenpreferencesandricepreferences?
A.Yes,becausetheproportionofchickenandriceeaterstoallchickeneatersishigherthanallriceeaterstoalleaters;andbecausetheproportionofchickenandriceeaterstoallriceeatersishigherthanallchickeneaterstoalleaters.
B.Yes,becausetheproportionofchickenandriceeaterstoallriceeatersishigherthanallriceeaterstoalleaters;andbecausetheproportionofchickenandriceeaterstoallriceeatersishigherthanallriceeaterstoalleaters.
C.No,becausetheproportionofchickenandriceeaterstoallchickeneatersislowerthanallriceeaterstoalleaters;andbecausetheproportionofchickenandriceeaterstoallriceeatersislowerthanallchickeneaterstoalleaters.
D.No,becausetheproportionofchickenandriceeaterstoallchickeneatersislowerthanallchickeneaterstoalleaters;andbecausetheproportionofchickenandriceeaterstoallriceeatersislowerthanallriceeaterstoalleaters.
11.Victordecidestotrythreedifferentroutestoworkforaperiodof 40 days.Inthetableabove,hetrackedwhetherhearrivedtoworklateorontimeeachtimethatheusedaparticularroute.Accordingtothetable,whatistheprobabilitythatVictortooklatewhenheusedRouteA?
A.
B.
C.
D.
12.Asurveyconductedonarandomsamplereportsfindingsontelecommutinginnon-academicjobsintheUnitedStates,withafocusonsalesandcomputerprogramming.Accordingtothetableabove,whatistheprobabilitythatarandomlychosenjobfromthestudyisapartiallyremotesalesjob?
Roundtothenearesthundredth.
13.AmanufacturerofplasticsandepoxyresinshascommittedtoeliminatingthechemicalBisphenol-A(BPA)fromitsentireproductline.Accordingtothetable,whatpercentageofthemanufacturer'sepoxyresinandpolycarbonateproductsareBPA-containingpolycarbonateproducts?
Roundanswertothenearesttenthofapercent.
14.Thescatterplottotheleftdisplaysthepercentage, P,ofpaperconsumedintheUnitedStates(US)thathasbeenrecycledfrom 1990 to2012,where t representsyearssince 1990.Whichofthefollowingequationsbestmodelstherelationshipbetweenyearssince 1990 andthepercentofconsumedpaperthathasbeenrecycled?
A.P=0.8t+35
B.P=1.3t+35
C.P=1.7t+35
D.P=3t+35
15.Adsilamonitoredgaspricesatherlocalgasstationthroughout 2014.Thescatterplottotheleftshowstheprice, g,indollars,for 1 gallonofgasonvariousdaysoftheyear,where d representsdayssinceJanuary1, 2014.Afunctionthatmodelsthedataisshownonthegraph.Whichofthefollowingbestapproximatesthepricefor 1 gallonofgasonSeptember 12, 2014,the
dayoftheyear?
A.$2.55
B.$3.10
C.$3.45
D.$3.50
16.ThescatterplottotheleftshowsthenumberofmooseM,estimatedtobelivinginMinnesotafrom 2005 to 2012.WhichofthefollowingequationsbestmodelsthepopulationofmooseinMinnesotaduringthistimeperiod,where t representstheyearssince 2005?
A.M=8,593−563t
B.M=10,343−1,842t
C.M=7,923+578t
D.M=5,725+467t
17.Thescatterplotdrawnatleftdepictsthepriceof 1 gallonofgasolineintheUnitedStates(U.S.)from 1980 to 2008.Thegraphofaquadraticmodelthatfitsthisdatahasavertexat (17.24,1.33)(17.24,1.33).WhatdoesthevertextellusaboutU.S.gasprices?
A.Intheyear 1997,thepricefor 1 gallonofgasolinereacheditsexactmaximumvalueof $1.33.
B.Intheyear 1997,thepricefor 11 gallonofgasolinereacheditsexactminimumvalueof $1.33.
C.Inapproximatelytheyear 1997,thepricefor 1 gallonofgasolinereacheditsapproximatemaximumvalueof $1.33.
D.Inapproximatelytheyear 1997,thepricefor 11 gallonofgasolinereacheditsapproximateminimumvalueof $1.33.
18.Duringthe 2014-2015 season,astatisticiancollecteddataonaprofessionalsportsteam.Thescatterplottotheleftshowshisfindingsfortheaverageminutesplayedpergameandtheaveragepointsscoredpergameforeachplayerontheteam.Whichofthefollowingequationsbestrelatesminutesplayedpergame, x,andpointsscoredpergame, p,forplayersonthisteam?
A.p=2x−2
B.p=2x+3
C.p=0.5x−2
D.p=0.5x+3
19.ThescatterplotdrawnatleftdepictsthechangeinthenumberofwomenintheUnitedStatesCongressfrom 1970 to 2009.Whichofthefollowingisthebestexponentialmodelforthisdata?
A.f(x)=1.056
B.f(x)=12.590
C.f(x)=12.590
D.f(x)=125.90
20.ThescatterplotdrawnattheleftdepictsthepercentageofMarylandresidentsborninMarylandbetweentheyears 1900 and 2000.Whichofthefollowingequationsbestdescribestherelationshipshown?
A.y=−0.3x+78.7
B.y=3.3x−78.7
C.y=−0.3x−78.7
D.y=−3.3x+78.7
21.Thescatterplottotheleftshowsthenumberofcollegestudents, n,inmillions,whoenrolledinatleastoneonline-coursefrom 2002 to 2011,where t representsyearssince 2002.Abestfitlinethatapproximatesthedataisalsoshownonthescatterplot.Whichofthefollowingisclosesttotheyearlyincreaseinonlinecollegestudentenrollmentfrom2002 to 2011?
A.130,000
B.580,000
C.1,725,000
D.58,000,000
Mateuscalculatedhiscar'saveragefueleconomy, y,inmilespergallon (mpg),forvariousspeeds, x,inmilesperhour(mph),andrecordedhisdata,alongwithabestfitcurve,onthescatterplotbelow.
22.Basedonthemodel,whichofthefollowingisatruestatement?
A.Mateus'cargetsamaximumfueleconomyofapproximately46 mpg.
B.Mateus'carobtainsitsmaximumfueleconomywhentravelingapproximately 46 mph.
C.Thecar'sfueleconomyincreasesbyapproximately 46 mpgasitacceleratesfrom 0 mph to 70 mph.
D.Mateus'carhasafueleconomyofapproximately 46 mpgregardlessofthespeed.
23.Thescatterplottotheleftdepictstheamountofcopper, c,inmetrictons,
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