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Maximizing a Combinatorial Expression Arising from Crowd Estimation by Davis, Donald M. is a scholarly article available to read on EtoBox.

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We determine, within 1, the value of N for which sum (s1 choose i)(s2 choose N)(s1 choose N-i)(N choose i) achieves its maximum value. Here s1 and s2 are fixed integers. This problem arises in studying the most likely value for the size of the union of A, B, and C if A and C are disjoint sets of size s1, and B is a set of size s2. Attempting to remove the 1 unit of indeterminacy leads to interesting conjectures about a family of rational functions.

Author

Davis, Donald M.

Published

2009

Language

EN