ToolHub

Probability Calculator

Solve probability problems including single events, conditional probability, Bayes' theorem, normal distribution, and combinatorics. Includes batch processing, statistical analysis, sensitivity testing, and interactive visualizations.

Key Features

  • • Single event probability (P(A))
  • • Multiple events (P(A ∩ B), P(A ∪ B))
  • • Conditional probability (P(A | B))
  • • Bayes’ theorem calculations
  • • Normal distribution (PDF, CDF, Z-score)
  • • Combinations & permutations (C(n,k), P(n,k))
  • • Batch processing (CSV or text input)
  • • Statistical analysis of probabilities
  • • Sensitivity analysis with variation (%)
  • • Interactive charts (bar & pie)
  • • Venn diagram visualization
  • • History tracking with export (CSV, JSON, PDF)

Use Cases

  • • Statistics and probability studies
  • • Machine learning and data science
  • • Risk analysis and decision making
  • • Exam preparation and problem solving
  • • Scientific and research calculations

How It Works

  • • Select calculation type (single, conditional, Bayes, etc.)
  • • Enter required probability values
  • • Set precision for decimal output
  • • Run calculation to compute results
  • • Use advanced tools for batch, stats, and sensitivity
  • • Analyze results using charts and visual diagrams

Calculator Settings

?Select the type of probability calculation.
?Decimal places for results.
?Upload CSV or enter calculations (e.g., single,0.4;multiple,0.4,0.3,0.1).