Mark Scheme (Results)
November 2021
Pearson Edexcel GCE
In Statistics (9ST0)
Paper 01: Data and Probability
,Edexcel and BTEC Qualifications
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. We provide a wide
range of qualifications including academic, vocational, occupational and specific programmes for
employers. For further information visit our qualifications websites at www.edexcel.com or www.btec.co.uk.
Alternatively, you can get in touch with us using the details on our contact us page at
www.edexcel.com/contactus.
Pearson: helping people progress, everywhere
Pearson aspires to be the world’s leading learning company. Our aim is to help everyone progress in their
lives through education. We believe in every kind of learning, for all kinds of people, wherever they are in
the world. We’ve been involved in education for over 150 years, and by working across 70 countries, in 100
languages, we have built an international reputation for our commitment to high standards and raising
achievement through innovation in education. Find out more about how we can help you and your students
at: www.pearson.com/uk
November 2021
Question Paper Log Number P66655A
Publications Code 9ST0_01_2111_MS
All the material in this publication is copyright
© Pearson Education Ltd 2021
, General Marking Guidance
Total marks
The total number of marks for the paper is 80.
Mark types
The Edexcel Statistics mark schemes use the following types of marks:
M Method marks,
awarded for ‘knowing a method and attempting to apply it’,
unless otherwise indicated.
A Accuracy marks can only be awarded if the relevant method (M) marks
have been earned.
B Unconditional accuracy marks are independent of M marks
E Explanation marks
NOTE: Marks should not be subdivided.
Abbreviations
These are some of the marking abbreviations that will appear in the mark schemes.
ft follow through
PI possibly implied
cao correct answer only
cso correct solution only
(There must be no errors in this part of the question)
awrt answers which round to
awfw answers which fall within (a given range)
SC special case
nms no method shown
oe or equivalent
dep dependent (on a given mark or objective)
dp decimal places
sf significant figures
The answer is printed on the paper
November 2021
Pearson Edexcel GCE
In Statistics (9ST0)
Paper 01: Data and Probability
,Edexcel and BTEC Qualifications
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. We provide a wide
range of qualifications including academic, vocational, occupational and specific programmes for
employers. For further information visit our qualifications websites at www.edexcel.com or www.btec.co.uk.
Alternatively, you can get in touch with us using the details on our contact us page at
www.edexcel.com/contactus.
Pearson: helping people progress, everywhere
Pearson aspires to be the world’s leading learning company. Our aim is to help everyone progress in their
lives through education. We believe in every kind of learning, for all kinds of people, wherever they are in
the world. We’ve been involved in education for over 150 years, and by working across 70 countries, in 100
languages, we have built an international reputation for our commitment to high standards and raising
achievement through innovation in education. Find out more about how we can help you and your students
at: www.pearson.com/uk
November 2021
Question Paper Log Number P66655A
Publications Code 9ST0_01_2111_MS
All the material in this publication is copyright
© Pearson Education Ltd 2021
, General Marking Guidance
Total marks
The total number of marks for the paper is 80.
Mark types
The Edexcel Statistics mark schemes use the following types of marks:
M Method marks,
awarded for ‘knowing a method and attempting to apply it’,
unless otherwise indicated.
A Accuracy marks can only be awarded if the relevant method (M) marks
have been earned.
B Unconditional accuracy marks are independent of M marks
E Explanation marks
NOTE: Marks should not be subdivided.
Abbreviations
These are some of the marking abbreviations that will appear in the mark schemes.
ft follow through
PI possibly implied
cao correct answer only
cso correct solution only
(There must be no errors in this part of the question)
awrt answers which round to
awfw answers which fall within (a given range)
SC special case
nms no method shown
oe or equivalent
dep dependent (on a given mark or objective)
dp decimal places
sf significant figures
The answer is printed on the paper
