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POISSON DISTRIBUTION (HOW? (X! (number of events might happen), λ (number…
POISSON DISTRIBUTION
HOW?
X!
number of events might happen
λ
number of events historically
e
2.71828
WHAT?
number times
an
event
occurs
random occurences
independent
WHO?
Siméon-Denis Poisson
Recherches sur la probabilité des jugements en matières criminelles et matière civile
WHY?
forecast business
WHEN?
1838
formula
