To find the variance of a hyper-geometric random variable in Example 2.3-4 we used the fact that

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Prove this result by making the change of variables k = x ˆ’ 2 and noting that

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Probability and Statistical Inference

ISBN: 978-0321923271

9th edition

Authors: Robert V. Hogg, Elliot Tanis, Dale Zimmerman

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Question Posted: Oct 12, 2015 08:41 AM

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To find the variance of a hyper-geometric random variable in Example 2.3-4 we used the fact that

Question:

ElX(X-1)] = NI(NI-1)(n)(n-1 ) N(N 1) nn(n-1) \n -2

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We have N N 1 N 2 Thus In ...View the full answer

Probability and Statistical Inference

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