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Mathematics, 07.03.2020 01:30 wrightdarius78

Suppose that 3 balls are randomly selected without replacement from an urn containing 5 white and 8red balls. LetXiequal 1 if theith ball is white, and let it equal 0 otherwise.(a) Give the joint probability mass function ofX1andX2.(b) Give the joint probability mass function ofX1,X2, andX3.

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