7.62 A box contains four balls, numbered 1 through 4. One ball is selected at random from...

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7.62 A box contains four balls, numbered 1 through 4.

One ball is selected at random from this box.

Let and the Xi’s are zero otherwise. Show that any two of the random variables X1, X2, and X3 are independent, but the three together are not.

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Probability And Statistics For Engineers

ISBN: 9781133006909

5th Edition

Authors: Richard L Scheaffer, Madhuri Mulekar, James T McClave, Cecie Starr

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