Edexcel Maths A Level Paper 31
Statistics QP
, Please check the examination details below before entering your candidate
information
Candidate surname Other names
Centre Candidate
Number Number
Pearson Edexcel Level 3
GCE
Monday 18 October 2021 – Afternoon
Paper reference
9MA0/31
Mathematics
▲ ▲
Advanced
PAPER 31: Statistics
You must have: Total
Mathematical Formulae and Statistical Tables (Green), calculator Marks
Candidates may use any calculator allowed by Pearson regulations. Calculators must
not have the facility for symbolic algebra manipulation, differentiation and
integration, or 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).
• centre
Fill in the boxesand
number at the top of this
candidate page with your
number.
• Answer all questions and ensure that your answers to parts of questions are
clearly labelled.
• Answer the questions in the spaces provided
– there may be more space than you need.
• You should show sufficient working to make your methods clear.
Answers without working may not gain full credit.
• Values from statistical tables should be quoted in full. If a calculator is used instead of
tables the value should be given to an equivalent degree of accuracy.
•Information
Inexact answers should be given to three significant figures unless otherwise stated.
• A booklet ‘Mathematical Formulae and Statistical Tables’ is
• The total mark for this part of the examination is 50. There are 6 questions.
• –The marks for each question are shown in
use this as a guide as to how much time to spend on each question.
•Advic
Read each question carefully before you start to answer it.
• Try to answer every
• Check your answers if you have time at the Turn over
end.
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A:1/1/1/1/1/ Distribution
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, 1. (a) State one disadvantage of using quota sampling compared with simple random
sampling.
(1)
In a university 8% of students are members of the university dance club.
A random sample of 36 students is taken from the university.
The random variable X represents the number of these students who are members of the dance club.
(b) Using a suitable model for X, find
(i) P(X = 4)
(ii) P(X 7)
(3)
Only 40% of the university dance club members can dance the tango.
(c) Find the probability that a student is a member of the university dance club and can
dance the tango.
(1)
A random sample of 50 students is taken from the university.
(d) Find the probability that fewer than 3 of these students are members of the
university dance club and can dance the tango.
(2)
Downloaded by: brianryan1 |
Distribution of this document is illegal
2
Statistics QP
, Please check the examination details below before entering your candidate
information
Candidate surname Other names
Centre Candidate
Number Number
Pearson Edexcel Level 3
GCE
Monday 18 October 2021 – Afternoon
Paper reference
9MA0/31
Mathematics
▲ ▲
Advanced
PAPER 31: Statistics
You must have: Total
Mathematical Formulae and Statistical Tables (Green), calculator Marks
Candidates may use any calculator allowed by Pearson regulations. Calculators must
not have the facility for symbolic algebra manipulation, differentiation and
integration, or 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).
• centre
Fill in the boxesand
number at the top of this
candidate page with your
number.
• Answer all questions and ensure that your answers to parts of questions are
clearly labelled.
• Answer the questions in the spaces provided
– there may be more space than you need.
• You should show sufficient working to make your methods clear.
Answers without working may not gain full credit.
• Values from statistical tables should be quoted in full. If a calculator is used instead of
tables the value should be given to an equivalent degree of accuracy.
•Information
Inexact answers should be given to three significant figures unless otherwise stated.
• A booklet ‘Mathematical Formulae and Statistical Tables’ is
• The total mark for this part of the examination is 50. There are 6 questions.
• –The marks for each question are shown in
use this as a guide as to how much time to spend on each question.
•Advic
Read each question carefully before you start to answer it.
• Try to answer every
• Check your answers if you have time at the Turn over
end.
,P68828A Downloaded by: brianryan1 |
©2021 Pearson Education Ltd.
A:1/1/1/1/1/ Distribution
of this document is illegal
, 1. (a) State one disadvantage of using quota sampling compared with simple random
sampling.
(1)
In a university 8% of students are members of the university dance club.
A random sample of 36 students is taken from the university.
The random variable X represents the number of these students who are members of the dance club.
(b) Using a suitable model for X, find
(i) P(X = 4)
(ii) P(X 7)
(3)
Only 40% of the university dance club members can dance the tango.
(c) Find the probability that a student is a member of the university dance club and can
dance the tango.
(1)
A random sample of 50 students is taken from the university.
(d) Find the probability that fewer than 3 of these students are members of the
university dance club and can dance the tango.
(2)
Downloaded by: brianryan1 |
Distribution of this document is illegal
2
