The Poisson distribution

poisson distribution def

a discrete probability distribution that applies to occurrences of some event over a specified interval

limit in poisson

there is no limit on the number of successes

assumptions of a Poisson distribution (3)

1. Events must occur one at a time, and occurrences of the events are independent

2. theoretically, an infinite 3 of occurrences of the event must be possible in the interval

3. The probability of a single occurrence of the event i8na given interval is proportional to the length of the interval

poisson probability formula

λ =

average # of occurrences of the random event in the specified interval

Do a poisson example

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do a Poisson distribution (at least)

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