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AQA-7366-2S-FURTHER MATHEMATICS QUESTION PAPER 2S:Statistics-AS LEVEL-17May24-PM

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AQA-7366-2S-FURTHER MATHEMATICS QUESTION PAPER 2S:Statistics-AS LEVEL-17May24-PM. 2 Do not write outside the box (02) G/Jun24/7366/2S Answer all questions in the spaces provided. 1 The discrete random variable X has probability distribution function P(X = x) = 0.45 x = 1 0.25 x = 2 0.25 x = 3 0.05 x = 4 0 otherwise { State the mode of X Circle your answer. [1 mark] 0.25 0.45 1 2.5 2 A test for association is to be carried out. The tables below show the observed frequencies and the expected frequencies that are to be used for the test. Observed X Y Z Expected X Y Z A 28 6 66 A 45 15 40 B 8 8 4 B 9 3 8 C 54 16 10 C 36 12 32 It is necessary to merge some rows or columns before the test can be carried out. Find the entry in the tables that provides evidence for this. Circle your answer. [1 mark] Observed A-Z Observed B-Z Expected A-X Expected B-Y 000002 Page 2 of 16 FURTHER MATHEMATICS 3 Do not write outside the box (03) G/Jun24/7366/2S Turn over 8 3 The random variable X has a normal distribution with known variance 15.7 A random sample of size 120 is taken from X The sample mean is 68.2 Find a 94% confidence interval for the population mean of X Give your limits to three significant figures. [3 marks] ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ Turn over for the next question 000003 Page 3 of 16 FURTHER M

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000001




AQA
AQA



Please write clearly in block capitals.


Centre number Candidate number




S
Surname _________________________________________________________________________




C
Forename(s) _________________________________________________________________________




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Candidate signature _________________________________________________________________________
I declare this is my own work.




A
AS


EM
FURTHER MATHEMATICS
Paper 2 Statistics
TH
Friday 17 May 2024 Afternoon Time allowed: 1 hour 30 minutes
A

Materials For Examiner’s Use
 You must have the AQA Formulae and statistical tables booklet for
A-level Mathematics and A-level Further Mathematics. Question Mark
M


 You should have a graphical or scientific calculator that meets the
requirements of the specification. 1
 You must ensure you have the other optional Question Paper/Answer Book
2
for which you are entered (either Discrete or Mechanics). You will have
ER




1 hour 30 minutes to complete both papers. 3
Instructions 4
 Use black ink or black ball-point pen. Pencil should only be used for drawing.
 Fill in the boxes at the top of this page.
5
TH




 Answer all questions.
 You must answer each question in the space provided for that question. 6
If you require extra space for your answer(s), use the lined pages at the end
of this book. Write the question number against your answer(s). 7
 Do not write outside the box around each page or on blank pages.
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 Show all necessary working; otherwise marks for method may be lost. TOTAL
 Do all rough work in this book. Cross through any work that you do not want
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to be marked.

Information
 The marks for questions are shown in brackets.
 The maximum mark for this paper is 40.


Advice
 Unless stated otherwise, you may quote formulae, without proof, from the booklet.
 You do not necessarily need to use all the space provided.




G/LM/Jun24/G4001/V6 7366/2S
Page 1 of 16

,000002

2
Do not write
outside the
box
Answer all questions in the spaces provided.



1 The discrete random variable X has probability distribution function




{
0.45 x=1
0.25 x=2




S
P(X = x) = 0.25 x=3
0.05 x=4




C
0 otherwise

State the mode of X




TI
Circle your answer.
[1 mark]




A
0.25 0.45 1 2.5




EM
TH
2 A test for association is to be carried out.

The tables below show the observed frequencies and the expected frequencies that
are to be used for the test.
A

Observed X Y Z Expected X Y Z
M


A 28 6 66 A 45 15 40

B 8 8 4 B 9 3 8
ER




C 54 16 10 C 36 12 32


It is necessary to merge some rows or columns before the test can be carried out.
TH




Find the entry in the tables that provides evidence for this.

Circle your answer.
[1 mark]
R




Observed A-Z Observed B-Z Expected A-X Expected B-Y
FU




(02)
G/Jun24/7366/2S
Page 2 of 16

, 000003

3
Do not write
outside the
box
3 The random variable X has a normal distribution with known variance 15.7

A random sample of size 120 is taken from X

The sample mean is 68.2


Find a 94% confidence interval for the population mean of X




S
Give your limits to three significant figures.




C
[3 marks]

______________________________________________________________________________________




TI
______________________________________________________________________________________




A
______________________________________________________________________________________




EM
______________________________________________________________________________________

______________________________________________________________________________________

______________________________________________________________________________________
TH
______________________________________________________________________________________

______________________________________________________________________________________
A

______________________________________________________________________________________
M


______________________________________________________________________________________
ER




Turn over for the next question
TH
R
FU




Turn over 8


(03)
G/Jun24/7366/2S


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