If tow dice are rolled 12 times, obtain the mean and the variance of the distribution of success, if getting a total greater than 4 is considered a success.

Explanation

Let X denote the number of successes in `12` events.

So,

`n=12 `

let,


`p = 1 -` Probability of getting a total less than or equal to `4.

p=1−6/(36)​=5/6​`


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