ProbTreeX

ProbTreeX is a tool that helps you visualize and understand probability through interactive tree diagrams.

Features:
• Build custom probability trees with 2-4 stages and 2-3 branches per stage
• Automatically calculate joint probabilities for all paths
• Interactive tree visualization with zoom and pan support
• Built-in probability calculator: multiplication rule, addition rule, complement, Bayes' theorem, permutations, and combinations
• Comprehensive learning section covering probability fundamentals • Works offline — no internet required for core features
• No personal data collection

Perfect for anyone learning probability theory. Visualize how probabilities combine across multiple stages and verify your calculations with the built-in tools.