# Poisson distribution Calculator

## Calculates the probability mass function and lower and upper distribution functions of the Poisson distribution. | ||

- Purpose of use
- to understand to analyze the question and how to work it out

[1] 2021/03/16 05:15 Female / 30 years old level / High-school/ University/ Grad student / Very /

- Purpose of use
- Use to model volcanic eruptions and calculate future eruptions

[2] 2021/02/04 11:51 Male / Under 20 years old / High-school/ University/ Grad student / Not at All /

- Purpose of use
- Sample size estimation
- Comment/Request
- It is not clear to me what the 34digit field means. Is it to adjust accuracy?

[3] 2020/11/25 23:50 Male / 30 years old level / High-school/ University/ Grad student / Useful /

- Purpose of use
- Understanding effect of oversampling large libraries

[4] 2019/09/27 08:33 Male / 40 years old level / A teacher / A researcher / Very /

- Purpose of use
- studying
- Comment/Request
- try to get questions from us and you reply

[5] 2019/06/12 17:53 Male / 30 years old level / A teacher / A researcher / A little /

- Purpose of use
- Checking the probability of events in a time period.

[6] 2018/09/20 22:05 Male / 50 years old level / An office worker / A public employee / Useful /

- Purpose of use
- Understand Poisson parameter roughly. Estimate if given problem is indeed approximately Poisson-distributed.
- Comment/Request
- I was expecting not only chart visualization but a numeric table. The FAQ may solve this. However my problem appears to be not Poisson but some relative of it, with a random parameterization. I fear the characterization might be above my pay grade. Some similarity to Zipf distribution is possible .. in Zipf, each entry n = 1,2,3.. has frequency f(n) and log(n) is reversely proportional to log(f(n)) -- approximately.

[7] 2018/02/10 05:19 Male / 40 years old level / A teacher / A researcher / Useful /

- Purpose of use
- I doing reseach on correllation between Poisso probability values ( x = 1,2,3,...) and certaint Trigonemetry quanty values and geometry of a line using principle of moment in Physics

[8] 2018/01/18 00:32 Male / 40 years old level / An engineer / Very /

- Purpose of use
- Checking my math

[9] 2017/12/29 03:28 Male / 30 years old level / Self-employed people / Useful /

- Purpose of use
- wanted to know how to program my calculator to get the results

[10] 2017/09/21 02:32 Female / 40 years old level / An office worker / A public employee / A little /

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