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A Note on the Modes of the Poisson Distribution of Order k

Probability 2013-12-30 v1 Statistics Theory Statistics Theory

Abstract

It is shown that for any positive integer k and positive parameter lambda less than 2/k(k+1), the Poisson distribution of order k with parameter lambda has a unique mode, 0. In addition, the Poisson distribution of order 2 has a unique mode, 0, if lambda is less than -1 plus the square root of 3. It has two modes, 0 and 2, if lambda is equal to -1 plus the square root of 3, and it has a unique mode, 2, if lambda is greater than -1 plus the square root of 3 and less than 1.

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Cite

@article{arxiv.1312.7139,
  title  = {A Note on the Modes of the Poisson Distribution of Order k},
  author = {Andreas N. Philippou},
  journal= {arXiv preprint arXiv:1312.7139},
  year   = {2013}
}

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3 pages