On the admissibility of bounds on the mean of discrete, scalar probability distributions from an iid sample
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arXiv
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866912244005076992 |
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| author | Learned-Miller, Erik |
| author_facet | Learned-Miller, Erik |
| contents | We address the problem of producing a lower bound for the mean of a discrete probability distribution, with known support over a finite set of real numbers, from an iid sample of that distribution. Up to a constant, this is equivalent to bounding the mean of a multinomial distribution (with known support) from a sample of that distribution. Our main contribution is to characterize the complete set of admissible bound functions for any sample space, and to show that certain previously published bounds are admissible. We prove that the solution to each one of a set of simple-to-state optimization problems yields such an admissible bound. Single examples of such bounds, such as the trinomial bound by Miratrix and Stark [2009] have been previously published, but without an analysis of admissibility, and without a discussion of the full set of alternative admissible bounds. In addition to a variety of results about admissible bounds, we prove the non-existence of optimal bounds for sample spaces with supports of size greater than 1 and samples sizes greater than 1. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_17223 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | On the admissibility of bounds on the mean of discrete, scalar probability distributions from an iid sample Learned-Miller, Erik Statistics Theory We address the problem of producing a lower bound for the mean of a discrete probability distribution, with known support over a finite set of real numbers, from an iid sample of that distribution. Up to a constant, this is equivalent to bounding the mean of a multinomial distribution (with known support) from a sample of that distribution. Our main contribution is to characterize the complete set of admissible bound functions for any sample space, and to show that certain previously published bounds are admissible. We prove that the solution to each one of a set of simple-to-state optimization problems yields such an admissible bound. Single examples of such bounds, such as the trinomial bound by Miratrix and Stark [2009] have been previously published, but without an analysis of admissibility, and without a discussion of the full set of alternative admissible bounds. In addition to a variety of results about admissible bounds, we prove the non-existence of optimal bounds for sample spaces with supports of size greater than 1 and samples sizes greater than 1. |
| title | On the admissibility of bounds on the mean of discrete, scalar probability distributions from an iid sample |
| topic | Statistics Theory |
| url | https://arxiv.org/abs/2502.17223 |