 Zero-truncated Poisson distribution (source code)

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= Zero-truncated Poisson distribution
{wiki=Zero-truncated_Poisson_distribution}

The Zero-Truncated Poisson (ZTP) distribution is a probability distribution that is derived from the Poisson distribution by removing the zero-count outcomes. This modification is useful in scenarios where the occurrence of an event is guaranteed to be at least one, hence no observations of zero are possible.

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