Poisson Distribution — Intuition, Examples, and Derivation

When should you use a Poisson Distribution?

Ms Aerin
Towards Data Science
7 min readJun 1, 2019

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Before we set the parameter λ and plug it into the formula, let’s pause for a second and ponder a few questions.

Why did Poisson have to invent the Poisson Distribution?

Why does this distribution exist (= why did he invent it)?

When is Poisson the appropriate choice for modeling?

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