IB Math AA HL · 2021 to 2026
4.9 Normal distribution
16 past paper questions from 11 exam sittings. See what repeats, then practise the same skills with AI marking.
7 AI-marked questions built for this exam pattern
2021 to 2025 · HL
4.9 Normal distribution
Latest sitting May 2025
- questions
- 16
- questions
- sittings
- 11
- sittings
- micro-topics
- 2
- micro-topics
2021 to 2025
Micro-topics in 4.9 Normal distribution
In syllabus order. The ring is the share of papers each appears in.
- Due
last May 25 P2 TZ2
- Less common
last May 25 P1 TZ3
Exam pattern
Which micro-topics repeat, and which are due, rising or fading.
Does it repeat?
Questions per year for each micro-topic.
fewermore
| Micro-topic | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|
| 4 | 2 | 3 | 2 | 2 | · | |
4.9.2The normal curve | · | · | · | · | 3 | · |
Generator
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Pick any mix of units, topics or micro-topics, generate a set, then practise matching Exam Vault questions with AI marking.
Explore by exam session
Where 4.9 Normal distribution came up in each paper. Open a paper to see those questions highlighted.
May 2025
2 questions across 2 papers
May 2024
2 questions across 2 papers
November 2023
1 question across 1 paper
May 2023
1 question across 1 paper
November 2022
1 question across 1 paper
May 2022
1 question across 1 paper
May 2021
2 questions across 2 papers
Specimen 2021
1 question across 1 paper
Every 4.9 Normal distribution question, unlocked
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Frequently asked questions
Short answers about this page.
Which Math AA HL exam sessions are covered for 4.9 Normal distribution?
12 sessions from 2021 to 2025, the latest May 2025. Every Paper 1, 2 and 3 in every timezone is read and classified in full.
Which 4.9 Normal distribution topic comes up most?
Normal probabilities (4.9.1): in 18% of sittings, last seen May 25 P2 TZ2, usually a "find / solve" 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.
What is free and what needs Pro?
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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