For the multinomial probability distribution, show that Cov (n i , n j ) = -np i
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For the multinomial probability distribution, show that
Cov (ni, nj) = -npipj
First show that E (ninj) = n(n - 1)pipj.
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Related Book For
Statistics For Engineering And The Sciences
ISBN: 9781498728850
6th Edition
Authors: William M. Mendenhall, Terry L. Sincich
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