A Level Math Revision Past papers A Level Maths topics International A Level Plans Free diagnostic

Edexcel IAL S1 past papers (WST01)

Statistics 1 (S1) question papers and mark schemes from Pearson Edexcel International A Level Mathematics, linked straight to Pearson. 1h 30min written paper (75 marks), calculator permitted.

Examiner Insights: what the Pearson Edexcel examiner reports say IAL S1 (WST01) students get wrong →

Papers are © the exam board; we link to the official copies. Details

Pearson publishes IAL units for January, June and October. We list P1 to P4, M1 and S1 from January 2019 to June 2025, every series Pearson has made public; October 2025 onwards is for teachers only for now.

Sit it under exam conditions: open the paper, press Start timer, press Finish when time is up, then mark it against the mark scheme. Timing is free, no sign-in; a free account saves your time and lets you enter your mark to track your progress.

Our own practice papers

Written by us, not Pearson papers.

Time yourself on a S1 paper here and keep your time and mark for each one. Free account, no card. Join free

S1 topics

Every S1 paper draws on these topics. Each opens our S1 page: what the topic covers, a worked example with its mark scheme, then practice questions.

S1 exam-style questions by topic → · Practise S1 questions → · Skill Builders → · S1 mock exam guide →

Recent S1 papers by topic

We matched every question in the 4 S1 papers from June 2024 to June 2025 to a topic, using Pearson's examiner reports. How many of those 4 papers had at least one question on each topic (a question can test more than one):

4 series are a small sample, so use this to see what a S1 paper usually looks like, not to guess the next one. The page for each of those papers lists its questions one by one.

Formula booklet

Mathematical Formulae and Statistical Tables (International AS/A Level Mathematics) · Pearson Edexcel · For the 2018 IAL specification (current)

Official booklet (opens in a new tab)Our one-page formula sheet (IAL)

Questions students ask

How long is the IAL S1 exam?

1h 30min written paper (75 marks), calculator permitted.

Where are the newest S1 papers?

Pearson publishes IAL units for January, June and October. We list P1 to P4, M1 and S1 from January 2019 to June 2025, every series Pearson has made public; October 2025 onwards is for teachers only for now.

What are the IAL S1 grade boundaries?

Pearson publishes raw-mark boundaries for every IAL unit and series on its grade boundaries page (opens in a new tab). We don't copy the numbers.

Other units: IAL P1 past papers · IAL P2 past papers · IAL P3 past papers · IAL P4 past papers · IAL M1 past papers · All IAL Maths papers