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Consider independent trails consisting of rolling a pair of fair dice, over and over
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closed with the note: Same question with only different options : https://gateoverflow.in/1116/rolled-again-again-total-obtained-chance-total-before-total

Consider independent trails consisting of rolling a pair of fair dice, over and over. What is the probability that a sum of 5 appears before sum of 7?

  1.   1/5
  2.   1/6
  3.   2/9
  4.   None of them
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