← All problems
🇷🇺 Russia VsOSh AI 2026, School Stage (Sirius platform, region group 4), grades 9–11
From Precision to Accuracy
Range of accuracy compatible with 50% precision on a set with given positives.
- Statement
- Russian · Read it in English (Google Translate)
- To hand in
- Written answers
- Data type
- ✍️ Written questions
- Estimated difficulty
- Unknown
- Solution
- See a solution ↗ · best opened after you have tried
Get ready on the platform
The foundations of the learning path for this kind of data.
›How to tackle it
- Read everything first. Note what each question asks and how it is marked.
- Work on paper. Justify every step: at an olympiad, the reasoning earns the points.
- Then compare. Open the solution only once you have an answer, and compare your reasoning with it.
Links taken from community indexes (checklist.sota-ai.org, awesome-ioai-tasks) and not all checked.
The statement, data and solutions belong to their authors; we only link to them.
Are you the author or organiser? Ask for a correction or removal