Pearson
Edexcel
Mark Scheme (Results)
Summer 2023
Pearson Edexcel GCE
In Statistics (9ST0)
Paper 01: Data and Probability
pg. 1
,pg. 2
, 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
pg. 3
Edexcel
Mark Scheme (Results)
Summer 2023
Pearson Edexcel GCE
In Statistics (9ST0)
Paper 01: Data and Probability
pg. 1
,pg. 2
, 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
pg. 3