Two number cubes are rolled. What is the probability that the sum of the numbers rolled is either a 7 or an 11?

There are 6 ways to roll a 7, and 2 ways to roll an 11, out of a total of 36 possible rolls. So the chance of rolling a 7 or an 11 is 6/36 + 3/36 = 8/36 = 2/9

Expert answered|Masha|Points 445|

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Updated 7/14/2011 1:47:22 PM

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If you replace the marble inside the bag, then the total number of marbles remains the same.
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Added 7/14/2011 1:47:22 PM

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A bag contains 3 red marbles, 2 blue marbles and 5 green marbles. What is the probability of selecting a blue marble, replacing it in the bag and then selecting a green marble? **Weegy:** .35625 (More)

Question

Updated 7/14/2011 1:46:58 PM

1 Answer/Comment

If you replace the marble inside the bag, then the total number of marbles remains the same.
(2/10) * (5/10)
==> 10/100

Added 7/14/2011 1:46:58 PM

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