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If pair of dice is thrown 4 times. If ge...

If pair of dice is thrown 4 times. If getting a doublet is considered a success, find the probability distribution of the number of doublets in three throws of a pair of dice and hence find its mean.

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The correct Answer is:
`P(0)=(125)/(216),P(1)=(75)/(216),P(2)=(15)/(216),P(3)=(1)/(216)`
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