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  answer-question

Statistics For Engineering And The Sciences

ISBN: 9781498728850

6th Edition

Authors: William M. Mendenhall, Terry L. Sincich

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