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Four bad oranges are mixed accidently wi...

Four bad oranges are mixed accidently with 16 good oranges. Find the probability distribution of the number of bad oranges in a draw of two oranges.

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The correct Answer is:
`P(0)=(12)/(19),P(1)=(32)/(95),P(2)=(3)/(95);" Mean"=(2)/(5);" Variance"=(144)/(475)`.
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