Poisson Distribution Calculator – Probability Distribution
Calculate Poisson distribution probabilities for discrete events
Table of Contents
How to Use
- Enter lambda (λ) - the average rate of occurrence
- Enter k - the number of events you want to evaluate
- Click calculate to find probabilities
- View P(X = k), P(X ≤ k), and P(X ≥ k)
What is Poisson Distribution?
The Poisson distribution is a discrete probability distribution that expresses the probability of a given number of events occurring in a fixed interval of time or space, given that these events occur with a known constant mean rate and independently of the time since the last event.
Frequently Asked Questions
- What is lambda (λ) in Poisson distribution?
- Lambda (λ) represents the average rate of occurrence or the expected number of events in the given interval. For example, if an average of 3 customers arrive per hour, λ = 3.
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