# Poisson distribution Calculator

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

 percentile x x=0,1,2,... mean λ λ≧0 6digit10digit14digit18digit22digit26digit30digit34digit38digit42digit46digit50digit
Poisson distribution
 [1-10] /12 Disp-Num5103050100200
[1]  2021/07/12 14:53   20 years old level / High-school/ University/ Grad student / Very /
Purpose of use
Preparing for math exam
[2]  2021/03/15 20:15   30 years old level / High-school/ University/ Grad student / Very /
Purpose of use
to understand to analyze the question and how to work it out
[3]  2021/02/04 02:51   Under 20 years old / High-school/ University/ Grad student / Not at All /
Purpose of use
Use to model volcanic eruptions and calculate future eruptions
[4]  2020/11/25 14:50   30 years old level / High-school/ University/ Grad student / Useful /
Purpose of use
Sample size estimation
Comment/Request
It is not clear to me what the 34digit field means. Is it to adjust accuracy?
[5]  2019/09/26 23:33   40 years old level / A teacher / A researcher / Very /
Purpose of use
Understanding effect of oversampling large libraries
[6]  2019/06/12 08:53   30 years old level / A teacher / A researcher / A little /
Purpose of use
studying
Comment/Request
try to get questions from us and you reply
[7]  2018/09/20 13:05   50 years old level / An office worker / A public employee / Useful /
Purpose of use
Checking the probability of events in a time period.
[8]  2018/02/09 20:19   40 years old level / A teacher / A researcher / 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.
[9]  2018/01/17 15:32   40 years old level / An engineer / Very /
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
[10]  2017/12/28 18:28   30 years old level / Self-employed people / Useful /
Purpose of use
Checking my math

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