lOMoAR cPSD| 9970737
WGU C784 Objective Assessment Complete
Guide (Latest 2024/ 2025 Update) Applied
Healthcare Statistics | Qs and As| 100%
Correct| Grade A (Verified Answers)
Modulel1
[p.l1.02]llNumberlSystems
[p.l1.05]llDatalclassification
A.ldiscreteldata-lhasldistinctlvalues,lcanlbelcounted,lhaslunconnected
pointsl(thinklofldatalasl“dots”).llExample
s:
•ll thelnumberlofleggslinlyourlrefrigerator
•ll thelnumberloflchildrenlinleachlhouseholdlinlyourlneighborhood
•ll thelnumberloflsyringeslusedlbylalhospitallinlalday
B.lcontinuousldata-
lhaslvalueslwithinlalrange,litlislmeasuredl(notlcounted),ldoeslnotlhavelg
, apslbetweenldatalpointsl(thinklofldatalasl“connectedllineslorlalcontinuu
m”).llExamples:
•ll thelheightloflaltoddlerlfromlinfancy
•ll alperson’slweightlduringlpregnancy
•ll thelvolumeloflfluidlinlthelbodylduringlexercise
[p.l1.05.1]llIntervals
A.ll<ll“Lesslthan”llandll >ll“greaterlthan”lcorrespondltolopenlintervals,
denotedlwithlparentheses;lonlnumberllines,lopenlcircleslarelused.
B.ll≤ll“Lesslthanlorlequallto”llandlll≥l “greaterlthanlorlequallto”lcorrespondlto
closedlintervals,ldenotedlwithlbrackets;lonlnumberllines,lfilled-inlcircles
arelused.
C.llPositivelandlnegativelinfinitylhavelnolboundlandlarelnotlnumbersltolbeli
ncludedlinlalsolutionlset.llUselparentheseslwhenlwritingleitherlpositivelo
rlnegativelinfinitylinlintervallnotation.
Example:llGraphlxl≤l−1,landlwritelthelsolutionlinlintervallnotation.
Tip:llIflthelvariablelislonlthelleftlsideloflthelinequalitylsign,lyoulcanluselth
elinequalitylarrowlaslanlarrowheadltoldeterminelwhichldirectionltoldrawlt
helgraph.
[p.l1.16]llPrimelandlcompositelnumbers
A.lAlprimelnumberlislalnumberlthatlhaslexactlyltwolpositivelfactors,l1lan
dlthelnumberlitself.llForlexample,l2,l3,landl5larelalllprimelnumbers.
B.lAlcompositelnumberlislalnumberlthatlislnotlprime,lsolitlcanlbeldivided
, bylanotherlnumberlbesidesl1landlitself.llForlexample,l4,l6,l8,landl9larelal
l
compositelnumbers.
[p.l1.17]llPrimelfactorization-
lwritinglthelnumberlaslalproductloflonlylprimelnumbers.llForlexample,l36l=
l2l×l2l×l3l×l3
[p.l1.17]llThelgreatestlcommonlfactorl(GCF)lofltwolorlmorelnumberslislthe
llargestlnumberlthatldivideslthelgivenlnumberslevenly.llExample:lWhatlislth
elgreatestlcommonlfactorlofl12landl20?
Whatlfactorsldol12landl20lhavelinlcommon?llLooklforlnumberslthatlarelfoundli
nlbothlfactorizations.llInlparticular,l2lappearsltwicelaslalfactorlofl12.llLikewise,
2lappearsltwicelaslalfactorlofl20.llSincel2lxl2l=l4,litlfollowslthatl4lislthe
greatestlcommonlfactorlofl12landl2
0.
Module
WGU C784 Objective Assessment Complete
Guide (Latest 2024/ 2025 Update) Applied
Healthcare Statistics | Qs and As| 100%
Correct| Grade A (Verified Answers)
Modulel1
[p.l1.02]llNumberlSystems
[p.l1.05]llDatalclassification
A.ldiscreteldata-lhasldistinctlvalues,lcanlbelcounted,lhaslunconnected
pointsl(thinklofldatalasl“dots”).llExample
s:
•ll thelnumberlofleggslinlyourlrefrigerator
•ll thelnumberloflchildrenlinleachlhouseholdlinlyourlneighborhood
•ll thelnumberloflsyringeslusedlbylalhospitallinlalday
B.lcontinuousldata-
lhaslvalueslwithinlalrange,litlislmeasuredl(notlcounted),ldoeslnotlhavelg
, apslbetweenldatalpointsl(thinklofldatalasl“connectedllineslorlalcontinuu
m”).llExamples:
•ll thelheightloflaltoddlerlfromlinfancy
•ll alperson’slweightlduringlpregnancy
•ll thelvolumeloflfluidlinlthelbodylduringlexercise
[p.l1.05.1]llIntervals
A.ll<ll“Lesslthan”llandll >ll“greaterlthan”lcorrespondltolopenlintervals,
denotedlwithlparentheses;lonlnumberllines,lopenlcircleslarelused.
B.ll≤ll“Lesslthanlorlequallto”llandlll≥l “greaterlthanlorlequallto”lcorrespondlto
closedlintervals,ldenotedlwithlbrackets;lonlnumberllines,lfilled-inlcircles
arelused.
C.llPositivelandlnegativelinfinitylhavelnolboundlandlarelnotlnumbersltolbeli
ncludedlinlalsolutionlset.llUselparentheseslwhenlwritingleitherlpositivelo
rlnegativelinfinitylinlintervallnotation.
Example:llGraphlxl≤l−1,landlwritelthelsolutionlinlintervallnotation.
Tip:llIflthelvariablelislonlthelleftlsideloflthelinequalitylsign,lyoulcanluselth
elinequalitylarrowlaslanlarrowheadltoldeterminelwhichldirectionltoldrawlt
helgraph.
[p.l1.16]llPrimelandlcompositelnumbers
A.lAlprimelnumberlislalnumberlthatlhaslexactlyltwolpositivelfactors,l1lan
dlthelnumberlitself.llForlexample,l2,l3,landl5larelalllprimelnumbers.
B.lAlcompositelnumberlislalnumberlthatlislnotlprime,lsolitlcanlbeldivided
, bylanotherlnumberlbesidesl1landlitself.llForlexample,l4,l6,l8,landl9larelal
l
compositelnumbers.
[p.l1.17]llPrimelfactorization-
lwritinglthelnumberlaslalproductloflonlylprimelnumbers.llForlexample,l36l=
l2l×l2l×l3l×l3
[p.l1.17]llThelgreatestlcommonlfactorl(GCF)lofltwolorlmorelnumberslislthe
llargestlnumberlthatldivideslthelgivenlnumberslevenly.llExample:lWhatlislth
elgreatestlcommonlfactorlofl12landl20?
Whatlfactorsldol12landl20lhavelinlcommon?llLooklforlnumberslthatlarelfoundli
nlbothlfactorizations.llInlparticular,l2lappearsltwicelaslalfactorlofl12.llLikewise,
2lappearsltwicelaslalfactorlofl20.llSincel2lxl2l=l4,litlfollowslthatl4lislthe
greatestlcommonlfactorlofl12landl2
0.
Module
