Pearson Edexcel Level 3 GCE Mathematics Advanced PAPER 31 Statistics JUNE 2024 Combined Question Pa

PleaseDcheckDtheDexaminationDdetailsDbelowDbeforeDenteringDyourDcandidateDinformati
on
CandidateDsurname OtherDnames


CentreDNumber CandidateD Number
Pearson Edexcel D D



Level 3 GCE D D




Mock Paper – Set 2
D D D D D




PaperD ReferenceD 9MA0/31

Mathematics
Advanced
Paper 31: Statistics D D




YouDmustDhave: TotalDMarks
MathematicalDFormulaeDandDStatisticalDTablesD(Green),Dcalculator



CandidatesDmayDuseDanyDcalculatorDallowedDbyDPearsonDregulations.DCalcul
atorsDmustDnotDhaveDtheDfacilityDforDsymbolicDalgebraDmanipulation,Ddifferenti
ationD andD integration,D orD haveD retrievableD mathematicalD formulaeDstoredDi
nDthem.
Instructions
•• Use black ink or ball‑point pen.
D D D

If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
D D




• Fillcentre
D D D D D D D D D D D D

in the boxes at the top of this page with your name,
D D D D D D D D D D D D
number and candidate number.
D D D D


• Answer
labelled.
all questions and ensure that your answers to parts of questions areclearly
D D D D D D D D D D D D D D




• Answer the questions in the spaces provided
D

– there may be more space than you need.
D D
D

D D D
D D

D
D

D D
D




• You should show sufficient working to make your methods clear.Answ
D

ers without working may not gain full credit.
D
D

D
D

D D
D

D D
D

D
D D D D D




• Values from statistical tables should be quoted in full. If a calculator is used insteadof
D D

tables the value should be given to an equivalent degree of accuracy.
D D D
D

D D
D

D D
D

D
D D D

D
D D

D
D

D
D D D D D




• Inexact answers should be given to three significant figures unless otherwise stated.
D D D D D D D D D D D


Information
•• AThebooklet
D ‘Mathematical Formulae and Statistical Tables’ is provided.
D

total mark for this part of the examination is 50. There are 5 questions.
D D D D D D


• The marks for each question are shown in brackets
D
D
D
D D
D


– use this as a guide as to how much time to spend on each question.
D D D D D
D


D
D
D
D


D
D


D
D
D
D
D
D D
D
D
D
D D


D D
D


D
D D D




Advice
• Read each question carefully before you start to answer it.
D D D D D D D D D



•• Try to answer every question.
D D
Check your answers if you have time at the end.
D D
D D
D D D D D D D
Turn over D




S67802A
©2020D PearsonD EducationD Ltd.

1/

,1. TheDpartiallyDcompletedDtableDbelowDsummarisesDtheDtimesDtakenDbyD120DjobDapplican
tsDtoDcompleteDaDtask.

Time,DtD(minutes) 5D<DtDD7 7D<DtDD10 10D<DtDD14 14D<DtDD18 18D<DtDD30
Frequency 10 23 51

ADhistogramDisDdrawn.
TheD barD representingD theD 5D<DtDD7D hasD aD widthD ofD 1DcmD andD aD heightD ofD 5Dcm.

(a) GivenDthatDtheDbarDrepresentingDtheDgroupD14D<DtDD18DhasDaDheightDofD4Dcm,DfindDt
heDfrequencyDofDthisDgroup.
(2)
(b) ShowingDyourDworking,DestimateDtheDmeanDtimeDtakenDbyDtheD120DjobDapplicants.
(3)
TheDlowerDquartileDofDtheDtimesDisD9.6DminutesDandDtheDupperDquartileDofDtheDtime
sDisD15.5Dminutes.
ForDtheseDdata,DanDoutlierDisDclassifiedDasDanyDvalueDgreaterDthanDQ3D+D1.5D´DIQR.

(c) ShowingDyourDworking,DexplainDwhetherDorDnotDanyDofDtheDtimesDtakenDbyDtheseD1
20DjobDapplicantsDmightDbeDclassifiedDasDoutliers.
(2)
CandidatesDwithDtheDfastestD5%DofDtimesDforDtheDtaskDareDgivenDinterviews.
(d) EstimateDtheDtimeDtakenDbyDaDjobDapplicant,DbelowDwhichDtheyDmightDbeDgivenDanDinterview.
(2)




2

, QuestionD1Dcontinue
d




(TotalDforDQuestionD1DisD9Dmarks)

3
TurnDover