APS Section 4.1 Exam Questions with
complete solutions (2024-2025)
a jconvenience jsample j- jANS✓✓-In jorder jto jassess jthe jopinion jof jstudents jat
jthe jUniversity jof jMinnesota jon jcampus jsnow jremoval, ja jreporter jfor jthe
jstudent jnewspaper jinterviews jthe jfirst j12 jstudents jhe jmeets jwho jare jwilling jto
jexpress jtheir jopinion. jThe jmethod jof jsampling jused jis
a jvoluntary jresponse jsample j- jANS✓✓-A jtelevision jstation jis jinterested jin
jpredicting jwhether jvoters jin jits jviewing jarea jare jin jfavor jof joffshore jdrilling. jIt
jasks jits jviewers jto jphone jin jand jindicate jwhether jthey jsupport/are jin jfavor jof
jor jare jopposed jto jthis jpractice. jOf jthe j2241 jviewers jwho jphoned jin, j1574
j(70%) jwere jopposed jto joffshore jdrilling. jThe jviewers jwho jphoned jin jare
Simple jRandom jSample j(SRS) j- jANS✓✓-a jsample jthat jgives jevery jpossible
jsample jof jthe jsame jsize jthe jsame jchance jto jbe jselected.
multistage jsampling. j- jANS✓✓-In jorder jto jselect ja jsample jof jundergraduate
jstudents jin jthe jUnited jStates, jI jselect ja jsimple jrandom jsample jof jfour jstates.
jFrom jeach jof jthese jstates, jI jselect ja jsimple jrandom jsample jof jtwo jcolleges jor
juniversities. jFinally, jfrom jeach jof jthese jeight jcolleges jor juniversities, jI jselect ja
jsimple jrandom jsample jof j20 jundergraduates. jMy jfinal jsample jconsists jof j160
jundergraduates. jThis jis jan jexample jof
stratified jrandom jsample j- jANS✓✓-You jplan jto jgive ja jmath jachievement jtest
jto jsamples jof j15 jyear-olds jfrom jboth jthe jU.S. jand jKorea jin jorder jto jcompare
jmathematics jknowledge jin jthe jtwo jcountries. jIn jeach jcountry, jyou jwill
jrandomly jchoose
300 jstudents jfrom jlow-income jfamilies
400 jstudents jfrom jmiddle-income jfamilies
200 jstudents jfrom jhigh-income jfamilies
The jsample jfrom jKorea jis ja
complete solutions (2024-2025)
a jconvenience jsample j- jANS✓✓-In jorder jto jassess jthe jopinion jof jstudents jat
jthe jUniversity jof jMinnesota jon jcampus jsnow jremoval, ja jreporter jfor jthe
jstudent jnewspaper jinterviews jthe jfirst j12 jstudents jhe jmeets jwho jare jwilling jto
jexpress jtheir jopinion. jThe jmethod jof jsampling jused jis
a jvoluntary jresponse jsample j- jANS✓✓-A jtelevision jstation jis jinterested jin
jpredicting jwhether jvoters jin jits jviewing jarea jare jin jfavor jof joffshore jdrilling. jIt
jasks jits jviewers jto jphone jin jand jindicate jwhether jthey jsupport/are jin jfavor jof
jor jare jopposed jto jthis jpractice. jOf jthe j2241 jviewers jwho jphoned jin, j1574
j(70%) jwere jopposed jto joffshore jdrilling. jThe jviewers jwho jphoned jin jare
Simple jRandom jSample j(SRS) j- jANS✓✓-a jsample jthat jgives jevery jpossible
jsample jof jthe jsame jsize jthe jsame jchance jto jbe jselected.
multistage jsampling. j- jANS✓✓-In jorder jto jselect ja jsample jof jundergraduate
jstudents jin jthe jUnited jStates, jI jselect ja jsimple jrandom jsample jof jfour jstates.
jFrom jeach jof jthese jstates, jI jselect ja jsimple jrandom jsample jof jtwo jcolleges jor
juniversities. jFinally, jfrom jeach jof jthese jeight jcolleges jor juniversities, jI jselect ja
jsimple jrandom jsample jof j20 jundergraduates. jMy jfinal jsample jconsists jof j160
jundergraduates. jThis jis jan jexample jof
stratified jrandom jsample j- jANS✓✓-You jplan jto jgive ja jmath jachievement jtest
jto jsamples jof j15 jyear-olds jfrom jboth jthe jU.S. jand jKorea jin jorder jto jcompare
jmathematics jknowledge jin jthe jtwo jcountries. jIn jeach jcountry, jyou jwill
jrandomly jchoose
300 jstudents jfrom jlow-income jfamilies
400 jstudents jfrom jmiddle-income jfamilies
200 jstudents jfrom jhigh-income jfamilies
The jsample jfrom jKorea jis ja