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A pair of dice is thrown 4 times. If get...

A pair of dice is thrown 4 times. If getting a doublet is considered a success, find the probability distribution of number of successes. Also, find the mean and variance of number of successes.

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The correct Answer is:
`P(0)=(625)/(1296),P(1)=(500)/(1296),P(2)=(25)/(216),P(3)=(1)/(216)`
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