Probability Distribution Calculator (Normal, Binomial, Poisson, Uniform, Exponential, Geometric)
Are you struggling with probability distribution problems? This free online Probability Distribution Calculator helps you calculate probabilities, mean, variance, and cumulative distribution functions for popular distributions:
- Normal Distribution
- Binomial Distribution
- Poisson Distribution
- Uniform Distribution
- Exponential Distribution
- Geometric Distribution
It instantly generates probability values, expected values, and graphs so you can visualize the distribution easily.
How to Use
- Select the distribution type (Normal, Binomial, Poisson, etc.).
- Enter the required parameters (e.g., n & p for Binomial, λ for Poisson, μ & σ for Normal).
- Enter the value of X you want to calculate probability for.
- Click Calculate to get PDF, CDF, and statistics.
Tip: Graphs are automatically drawn to help understand the distribution visually.
Why This Tool?
As a statistician and economist, I know probability distributions form the backbone of statistical analysis. This tool is designed for:
- 🎓 Students – checking homework & exams.
- 📊 Teachers – explaining probability concepts visually.
- 🏦 Economists & Bankers – risk modeling and forecasting.
- 📈 Researchers – analyzing event probabilities and expected outcomes.
Try it below and save hours of manual calculation!