IB Math AI SL · 2021 to 2026

Unit 4: Statistics and Probability

460 past paper questions from 43 exam sittings. See what repeats, then practise the same skills with AI marking.

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2021 to 2026 · SL

Unit 4: Statistics and Probability

Latest sitting May 2026

questions
460
questions
sittings
43
sittings
micro-topics
28
micro-topics

2021 to 2026

Topics in Unit 4: Statistics and Probability

In syllabus order. The ring is the share of the marks each one carries.

Exam pattern

Which micro-topics repeat, and which are due, rising or fading.

Does it repeat?

Top 4 of 28 micro-topics for the next sitting. Numbers are questions per year.

fewermore

Micro-topic202120222023202420252026
4.11.1Contingency Tables and Chi-Squared
6822168
4.3.4Range and Standard Deviation
·2·6134
4.6.2Tree Diagrams and Conditional Probability
647274
4.8.2Binomial Calculations
424264

4 more micro-topics with a free account

  • RisingLinear Regression· last May 26 P2 TZ3

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Frequently asked questions

Short answers about this page.

Which Math AI SL exam sessions are covered for Unit 4: Statistics and Probability?

12 sessions from 2021 to 2026, the latest May 2026. Every Paper 1 and 2 in every timezone is read and classified in full.

Which Unit 4: Statistics and Probability topic comes up most?

Contingency Tables and Chi-Squared (4.11.1): in 27% of sittings, last seen May 26 P1 TZ3, usually a "write down / state" question worth about 2 marks.

Can I see the original question and mark scheme?

No. The wording belongs to the IB. You get the citation, the marks, the command term and the skill tested, plus our own practice questions of the same shape with worked answers and AI marking.

What do "banker", "due" and "rising" mean?

Banker: examined in at least one sitting in four and still appearing. Due: regular before, but absent for the last two exam sessions. Rising: clearly more common in the last two years. Our classification of real papers, not an IB statistic.

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Reading this page and the exam pattern is free. A free account generates three sets of ten questions and launches one practice set. Pro opens every question in any scope, sets of twenty or all, and unlimited practice.

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