surname names
Number Number
Afternoon
Mathematics
🟐 🟐
Advanced Subsidiary
PAPER 21: Statistics
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 pen.
•
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 name,
••
centre number and candidate number.
Answer all questions and ensure that your answers to parts of questions are clearly labelled.
Answer the questions
– there may in thethan
be more space spaces
youprovided
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
•Information
tables the value should be given to an equivalent degree of accuracy.
Inexact answers should be given to three significant figures unless otherwise stated.
••
A booklet ‘Mathematical Formulae and Statistical Tables’ is provided.
•
The total mark for this part of the examination is 30. There are 5 questions.
The
– usemarks
this asfor each as
a guide question
to how are
muchshown
timeintobrackets
spend on each question.
Advice
•
Read each question carefully before you start to answer it.
••
Try to answer every question.
If you change your mind about an answer, cross it out and put your new answer and any
•
working underneath.
Check your answers if you have time at the end.
EDEXCEL AS LEVEL MATHEMATICS (8MA0/21) QUESTION PAPER 21
AND MARK SCHEME SUMMER 2025
,1. The random variable X ~ B(20, 0.37)
(a) Find P(X = 8)
DO NOT WRITE IN THIS AREA
(1)
(b) Find P(X 5)
(1)
(c) Find P(X 5.7)
(1)
DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA
2
■■■■
, Question 1 continued
DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA
(Total for Question 1 is 3 marks)
3
■■■■ Turn over
Number Number
Afternoon
Mathematics
🟐 🟐
Advanced Subsidiary
PAPER 21: Statistics
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 pen.
•
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 name,
••
centre number and candidate number.
Answer all questions and ensure that your answers to parts of questions are clearly labelled.
Answer the questions
– there may in thethan
be more space spaces
youprovided
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
•Information
tables the value should be given to an equivalent degree of accuracy.
Inexact answers should be given to three significant figures unless otherwise stated.
••
A booklet ‘Mathematical Formulae and Statistical Tables’ is provided.
•
The total mark for this part of the examination is 30. There are 5 questions.
The
– usemarks
this asfor each as
a guide question
to how are
muchshown
timeintobrackets
spend on each question.
Advice
•
Read each question carefully before you start to answer it.
••
Try to answer every question.
If you change your mind about an answer, cross it out and put your new answer and any
•
working underneath.
Check your answers if you have time at the end.
EDEXCEL AS LEVEL MATHEMATICS (8MA0/21) QUESTION PAPER 21
AND MARK SCHEME SUMMER 2025
,1. The random variable X ~ B(20, 0.37)
(a) Find P(X = 8)
DO NOT WRITE IN THIS AREA
(1)
(b) Find P(X 5)
(1)
(c) Find P(X 5.7)
(1)
DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA
2
■■■■
, Question 1 continued
DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA
(Total for Question 1 is 3 marks)
3
■■■■ Turn over
