Languages
English,French,German,Japanese,Korean,Portuguese,Russian,Chinese,Spanish
About this app
This app is a fully offline probability tree practice tool. It does not require login or network access and does not collect user data. All practice records are stored locally on the user's device.
Screenshots
Features
- Question Type Templates: Save ball-drawing, lottery, independent events, and conditional probability questions
- Branch Records: Fill event and probability by level
- Step-by-Step Derivation: Record multiplication rule, addition rule, and verification process
- Error Review: Mark common mistakes and mastery status
- Statistics Dashboard: View accuracy by question type