StatisticsCalculator.xyz

Free Online Statistical Tools

Probability Distributions Calculator

Learn about probability distributions

Select Distribution

How to Use

  1. Select the probability distribution type
  2. Enter the required parameters for the distribution
  3. Select the calculation type (probability, inverse, etc.)
  4. Enter the values for calculation
  5. Click "Calculate" to see the results

About Probability Distributions

Probability distributions describe how probabilities are distributed over the values of a random variable.

  • Normal: Bell-shaped, symmetric distribution
  • Binomial: Discrete distribution for success/failure trials
  • Poisson: Discrete distribution for rare events
  • t-Distribution: Similar to normal but with heavier tails
  • Chi-Square: Used in hypothesis testing
  • F-Distribution: Used in ANOVA tests