Exam (elaborations)
Pearson Edexcel Level 3 GCE Statistics Advanced PAPER 1: Data and Probability QP JUNE 2024
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Pearson Edexcel Level 3 GCE Statistics Advanced PAPER 1: Data and Probability QP JUNE 2024
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Pearson Edexcel Level 3 GCE Statistics Advanced PAPER 1: Data and Probability QP JUNE 2024surname names
Number Number
Paper
Statistics
■ ■
Advanced
PAPER 1: Data and Probability
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 pen.
• Fill
If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
in the boxes at the top of this page with your name,
• Answer
centre number and candidate number.
all questions and ensure that your answers to parts of questions are
• Answer
clearly labelled.
the questions in the spaces provided
• You
– there may be more space than you need.
should show sufficient working to make your methods clear.
• Unless
Answers without working may not gain full credit.
otherwise stated, inexact answers should be given to three
• Unless
significant figures.
otherwise stated, statistical tests should be carried out at the 5%
significance level.
Information
•• AThere booklet ‘Statistical formulae and tables’ is provided.
are 8 questions in this question paper. The total mark for this paper is 80.
•Advice asfora guide
The
– use marks
this each as
question
to how are
muchshown
timeintobrackets
spend on each question.
••• Read
Try
Check
each question carefully before you start to answer it.
to answer every question.
your answers if you have time at the end.
• Ifcross
you change your mind about an answer,
it out and put your new answer and any working underneath. Turn over
P75704RA
©2024 Pearson Education Ltd.
F:1/1/1/1/1/1/
, Answer ALL questions. Write your answers in the spaces provided.
1 The Olympic Games are held every 4 years.
DO NOT WRITE IN THIS AREA
The least squares regression line for the winning times in the men’s 100 metre races for
each Olympic Games held after 1900 was calculated.
The calculated equation, where t is the winning time in seconds, and n is the number of
years after 1900 that the time was achieved, is
t = 10.878 – 0.0106n
[Source: https:www.liveabout.com/100‑meter‑mens‑olympic‑medalists‑3259179]
(a) Interpret the value of 0.0106 in context.
(2)
DO NOT WRITE IN THIS AREA
No Olympic Games were held in 1940 because of the Second World War.
(b) Estimate what the winning time for the men’s 100 metre race in 1940 would have
been, had it been run.
Give your answer correct to two decimal places.
(1)
DO NOT WRITE IN THIS AREA
(c) Explain why the least squares regression line may be unsuitable for predicting future
winning times in the Olympic Games, men’s 100 metre races.
(2)
(Total for Question 1 is 5 marks)
2
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, DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
■■■■
BLANK PAGE
Turn over
3
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