Please check the examination details below before entering your
candidate information
Candidate surnameOther names
Centre Candidate
Number Number
Pearson Edexcel Level
3 GCE
Tuesday 10 June
Afternoon (Time: 2
2025
hours) referen 9ST0/
ce
Statistics 02
🟐 🟐
Paper
Advanced
PAPER 2: Statistical Inference
You must have: Total
Statistical formulae and tables booklet Calculator Marks
Candidates may use any calculator allowed by Pearson regulations.
Calculators must not have retrievable mathematical formulae
stored in them.
Instructions
• Use black ink or ball-point
• If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
• Fill in the boxes at the top of this page with your
• Answer
centre
pen. number and candidate number.
all questions and ensure that your answers to parts of
• provided – there
questions
name, are clearly labelled.
Answer the questions in the spaces
• than may be more space
you need.
You should show sufficient working to make your methods
• Unless
clear. Answers without working may not gain full credit.
otherwise stated, inexact answers should be given to
• Unless
three significant figures.
otherwise stated, statistical tests should be carried out
at the 5% significance level.
Informatio
• A booklet ‘Statistical formulae and tables’ is
n
• There are 6 questions in this question paper. The total mark for this
• The marks for each question are shown in
provided.
paper is 80. – use this as a guide as to how much time to spend on
each question.
brackets
•• Read
Advice
each question carefully before you start to answer it.
Try to answer every
•
• Check your answers
If you change if youabout
your mind have time at
an answer, cross it out and put your new answer and
question.
the end. A any working
underneath.
©2025 Pearson Education Ltd.
Y:1/1/1/1/1/1/1/1/1/1/
P76382
,Turn over
, Answer ALL questions. Write your answers in the spaces provided.
1 Since 2006 the RAC, a roadside assistance organisation, have used the RAC Pothole
AREA
DO NOT WRITE IN THIS
Index to monitor the state of UK roads.
The Index is a measure of how often, on average, an RAC member requests roadside
assistance for a breakdown where damage from a pothole or other road surface defect
was most likely the cause of the breakdown.
An Index of 1.2 would mean the likelihood of pothole damage had increased by 20%
compared to 2006
A reporter sees that the most recently reported figure was 2.0 and wishes to write an
article about the likelihood of pothole damage, which she claims is now twice as great
as in 2006
[Source: How to report a pothole and claim for damage online | RAC Drive]
(a) Explain why the reporter is correct in her interpretation of the value of 2.0
(1)
AREA
DO NOT WRITE IN THIS
For the years 2014 to 2021, the Pothole Index for each quarter was recorded, the
summary statistics are shown below.
x 70.05 x x n 32
2 6.5596
(b) Test to see whether, on average, this evidence would have supported the reporter’s
claim between 2014 and 2021
(8)
AREA
DO NOT WRITE IN THIS
2
, ■■■■
candidate information
Candidate surnameOther names
Centre Candidate
Number Number
Pearson Edexcel Level
3 GCE
Tuesday 10 June
Afternoon (Time: 2
2025
hours) referen 9ST0/
ce
Statistics 02
🟐 🟐
Paper
Advanced
PAPER 2: Statistical Inference
You must have: Total
Statistical formulae and tables booklet Calculator Marks
Candidates may use any calculator allowed by Pearson regulations.
Calculators must not have retrievable mathematical formulae
stored in them.
Instructions
• Use black ink or ball-point
• If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
• Fill in the boxes at the top of this page with your
• Answer
centre
pen. number and candidate number.
all questions and ensure that your answers to parts of
• provided – there
questions
name, are clearly labelled.
Answer the questions in the spaces
• than may be more space
you need.
You should show sufficient working to make your methods
• Unless
clear. Answers without working may not gain full credit.
otherwise stated, inexact answers should be given to
• Unless
three significant figures.
otherwise stated, statistical tests should be carried out
at the 5% significance level.
Informatio
• A booklet ‘Statistical formulae and tables’ is
n
• There are 6 questions in this question paper. The total mark for this
• The marks for each question are shown in
provided.
paper is 80. – use this as a guide as to how much time to spend on
each question.
brackets
•• Read
Advice
each question carefully before you start to answer it.
Try to answer every
•
• Check your answers
If you change if youabout
your mind have time at
an answer, cross it out and put your new answer and
question.
the end. A any working
underneath.
©2025 Pearson Education Ltd.
Y:1/1/1/1/1/1/1/1/1/1/
P76382
,Turn over
, Answer ALL questions. Write your answers in the spaces provided.
1 Since 2006 the RAC, a roadside assistance organisation, have used the RAC Pothole
AREA
DO NOT WRITE IN THIS
Index to monitor the state of UK roads.
The Index is a measure of how often, on average, an RAC member requests roadside
assistance for a breakdown where damage from a pothole or other road surface defect
was most likely the cause of the breakdown.
An Index of 1.2 would mean the likelihood of pothole damage had increased by 20%
compared to 2006
A reporter sees that the most recently reported figure was 2.0 and wishes to write an
article about the likelihood of pothole damage, which she claims is now twice as great
as in 2006
[Source: How to report a pothole and claim for damage online | RAC Drive]
(a) Explain why the reporter is correct in her interpretation of the value of 2.0
(1)
AREA
DO NOT WRITE IN THIS
For the years 2014 to 2021, the Pothole Index for each quarter was recorded, the
summary statistics are shown below.
x 70.05 x x n 32
2 6.5596
(b) Test to see whether, on average, this evidence would have supported the reporter’s
claim between 2014 and 2021
(8)
AREA
DO NOT WRITE IN THIS
2
, ■■■■
