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A die is thrown thrice. If getting a fou...

A die is thrown thrice. If getting a four is considered a success, then the mean and variance of the distribution of the number of successes are

A

`(1)/(2),(1)/(12)`

B

`(1)/(6),(5)/(12)`

C

`(5)/(6),(1)/(2)`

D

`(1)/(2),(5)/(12)`

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The correct Answer is:
D
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