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Poisson Probability Calculator

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Poisson Probability Calculator

Welcome to areppim's Probabilities Calculator!

You want to calculate the probability (Poisson Probability) of a given number of occurrences of an event (e.g. customers entering the shop, defectives in a box of parts or in a fabric roll, cars arriving at a tollgate, calls arriving at the switchboard) over a continuum (e.g. a specific time interval, length, volume, area or number of similar items). Just enter the requested parameters and you'll have an immediate answer.


Enter your parameters:
 Mean (average rate of occurrence) :
 Variable (number of occurrences):


              

Instructions

  1. Enter the mean in the text field next to "Mean (average rate of occurrence)". The mean should be a natural number higher than 0.
  2. Enter the random variable in the text field next to "Variable (number of occurrences)". The variable is = 0, 1, 2 ...
  3. To correct an entry, click the Reset button.

Please walk through some Poisson Probability examples.

 

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