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Pearson Edexcel Level 3 GCE 2025/2026 statistics merged question paper + mark scheme

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Answer ALL questions. Write your answers in the spaces provided. 1 A study in 2021 investigated the number of hail days in a large European area covering Germany, France, Belgium and Luxembourg. A hail day was defined as one in which a radar detected the conditions necessary for hail to occur anywhere within this area. Over the past 20 years, the mean number of hail days in a year in this area was 86 [Source : (a) Find the probability that (i) in a randomly chosen year there would be at least 90 hail days, (ii) in a randomly chosen two‑year period, there are no more than 160 hail days. (b) State two assumptions needed, in the context of this question, to calculate the probabilities in (a) and in each case give a reason why that assumption may not be appropriate. (2)

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Please check the examination details below before entering your
candidate information
Candidate surnameOther names

Centre Candidate
Number Number


Pearson Edexcel Level
3 GCE
Tuesday 17 June
Afternoon (Time : 2
2025
hours) referen 9ST0/
ce
Statistics 03
🟐 🟐
Paper
Advanced
PAPER 3 : Statistics in Practice


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
questions are clearly labelled.
• provided – there
name,
Answer the questions in the spaces
may be more space
• You should show sufficient working to make your methods clear.
than you need.

Answers without working may not gain full
• credit. otherwise stated, inexact answers should be given to three significant
Unless
• Unless otherwise stated, statistical tests should be
figures.
Informatio
carried out at the
• 5%
n A booklet ‘Statistical formulae and tables’ is
significance
level.
provided.
• There are 6 questions in this question paper. The total mark for

• this paper for
The marks is 80. – use
each
on each question.
this asare
question a guide
shownasin
to how much time to spend

Advice
• brackets
Read each question carefully before you start to answer it.
• Try to answer every

• Check your answers
If you change if you
your mind havean
about time at
answer, cross it out and put your new answer
question.
the end.
and any
P76383A working
©2025 Pearson Education Ltd. Y:1/1/1/1/1/

,underneath. Turn over

,DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS
AREA




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BLANK PAGE




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Uploaded on
February 10, 2026
Number of pages
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Written in
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Type
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