# the probability of sum when a dice is rolled twice

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An ordinary (fair) die is a cube with the numbers 1 through 6 on the sides (represented by painted spots). Imagine that such a die is rolled twice in succession and that the face values of the two rolls are added together. This sum is recorded as the outcome of a single trial of a random experiment.

Compute the probability of each of the following events:

Event : A The sum is greater than 9 .

Event : B The sum is divisible by 6 .

Write your answers as exact fractions.

P (A) =

P (B) =

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##### Solution Summary

The solution explains the concept of finding the probabaility when rolling a dice twice.

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Please see the attached file for detailed soltuion.

probability of cetain event = outcomes of this event / total outcomes.

When you roll a die, the probability of getting 1 is 1/6. (you have total of 6 ...

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